US2385620A - Electric outlet accessory fixture - Google Patents
Electric outlet accessory fixture Download PDFInfo
- Publication number
- US2385620A US2385620A US538220A US53822044A US2385620A US 2385620 A US2385620 A US 2385620A US 538220 A US538220 A US 538220A US 53822044 A US53822044 A US 53822044A US 2385620 A US2385620 A US 2385620A
- Authority
- US
- United States
- Prior art keywords
- fixture
- plate
- receptacle
- apertures
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
- H01R25/006—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits the coupling part being secured to apparatus or structure, e.g. duplex wall receptacle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/14—Fastening of cover or lid to box
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
Definitions
- This invention relates to electrical fixtures and more particularly to an accessory fixture for use with plug-'intype electrical outlets for connecting a pilot-light thereto.
- the aforesaid type of outlet comprises a receptacle containing spring contacts, which is usually mounted in a metal box set into the wall, 'the receptacle having slots into which standard plugs having'blade contacts may be inserted.
- the spring contacts within the receptacle frictionally engage the blade contacts or the plug and hold it in place. This engagementis adequate to retain-the plug and make good electrical contact even though the plug is not fully inserted.
- metal plates having suitable apertures to expose'the face of the receptacle are customarily placed over the box' and securedto the receptacle, usually by a single screw'in the center of the plate.”
- the present invention provides an accessory fixture'incorporating a pilot-light and'a socket therefor, whichfixture may also serve as a substitute-for the usual closure plate. It' comprises a thin body of dielectric material having apertures through which an attachment plug may be inserted into the-receptacle and when this is-done the blade contacts of'the plug connect the socket of the pilot ligh't with the current supply, which is, connected to the contacts within the receptacle, through the'medium of contact members carried by the dielectric'body and adapted to engage the bladecontacts of the plug as they pass through" the apertures.
- pilot-lights in connection with electrical outletsare'well recognized. They serve as visible warnings that current is being supplied to some electrical-appliance and reduce the hazards of inadvertently leaving in circuit such .thingsas electric irons, toasters, soldering irons and heaters. Ordinarily, such pilot-lights are to be had only by the installation of a special electrical fixture and the services of a skilled electrician.
- the device of the present invention converts a standard outlet into an outlet equipped with a pilot-light without requiring any contact with or change in the electrical wiring, and requires no skill for its installation.
- the device also serves to provide a source of illumination at the outlet which may be used as a night light, for example in sick rooms, nurseries, bathrooms, etc., the light being turned on and oil by the insertion and removal of a standard plug.
- Fig. 1 is an elevation of one form of the device having a single pilot-light serving both receptacles of a dual outlet;
- Fig. 2 is a similar view of another form having a separate pilot-light for each outlet:
- Fig. 3 is a vertical section through a wall outlet showing the device installed; Fig. dis an enlarged detail section on the line 4-4 of Fig. 3, showing the plug partially inserted;
- Fig. 5' is a detail elevation of a portion of the metal cover-plate before assembly
- Fig. 6 is a detail of an edge of the assembled device showing one method of marginally securing the sheets of insulation to the metal coverplate;
- Fig. 7 is an enlarged perspective view of a portion of one of the metal strips which makes the contact with a blade of an attachment plug.
- a receptacle 8 is mounted in a box 9 covered and closed by the fixture of the invention which comprises a cover plate I 0 having the usual beveled edge H, which plate need be only slightly longer and may be of the same width as standard cover-plates. For maximum strength with minimum thickness it may be made of a rigid metal such as steel.
- a casing l2 enclosing a standard socket of any desired type, for example a screw socket, for securing and making contact with the terminals of an electric lamp M.
- the socket has the usual central terminal l5 and side terminal l6, insulated from each other. Secured to the rear of the coverplate are tWo sheets of thin dielectric material I!
- the usual standard receptaole' is provided with openings 30 and around these openings it is usually recessed as shown at 3
- the metal strip 33 (Fig. l) which is attached at one end to the outer contact I6 of the lamp socket is similar to the strip 2
- and 33 are held in place between the layers of insulation I! and I8 which in turn are 'secured in the metal face plate 10.
- These sheets of insulation may be secured at the edges of the plate as shown in Fig. 6 by folding back the outer edge of the plate and bending it inwardly against the edges of the insulation as shown at 35.
- the plate II] is formed with openings 35 which are stamped out so as to provide tongues 31 which may be bent at right angles and inserted through slots provided in the layers of insulation and crimped around them as shown at 38 in Fig. 4.
- FIG. 2 there is shown a modified form of the invention in which there are two pilot-lights, one for each'out let.
- Themetal strip 40 is connected with one terminal l5 of ach of the lamp sockets and pro 'trudes into the apertures overlying one of the openings in each of the two receptacles of the outlet.
- is connected with another terminal l6 of one of the lamp sockets and protrudes into the aperture overlying the other opening of one of the receptacles.
- the strip 42 is similarly connected to the other lamp socket and associated with the other receptacle.
- the pilot-light can be connected in circuit and used as a source of illumination merely by inserting the blade contacts of a plug through the fixture and into the receptacle. This will connect the light to the current supply whether or not any appliance is attached to the plug.
- a manually operated switch'or switches in association with any one'of the conducting strips 2!, 33, 40, 4! or 42 if desired, such switchesto'b'e mounted in any desired manner on the face of the plate II! for easy access.
- the device may be made otherwise than as above specifically described, for exampl by molding all or part of it from an insulating plastic in which the conductors may be imbedded during forming, thus eliminating the metal plate In altogether.
- An accessory fixture for use with an electrical outlet having a contact-carrying receptacle adapted to receive an attachment plug having blade contacts, said fixture comprising a thin dielectric body adapted to overlie said receptacle and having apertures to receive said blade contacts, contact means carried by said body and adapted to engage said blade contacts when they are inserted in said apertures, a lamp socket supported on said fixture and having terminals, and means electrically connecting said terminals with saidcont'a'c't means.
- accessory fixture for use with an electrical'outlet "having a contact-carrying receptacle adapted to receive an attachment plug having blade contacts, said fixture comprising a thin dielectric body having apertures to receive said b ade c ntact sp in m t fi gers carriedby said body and protruding into said apertures to engage said blade contacts when they are inserted therein, a lamp socketsupported on said fixture and having terminals, and means electrically connecting said terminals with said fingers.
- A. combined cover-plate and pilot-light fix ture for use with a flush-type electrical outlet having a contact-carrying receptacle adapted to receive'an attachment plug having blade contacts, said fixture comprising a cover plate for said outlet adapted to overlie said receptacle, insulation carried by said plate and having apertures alined with those in said receptacle, con.- tact means carried by said insulation and protruding into said apertures, a lamp socket mounted on said plate, and means electrically connecting said means with said lamp socket;
- a combined cover-plate and pilot-light fixture for use with standard flush-type electrical outlets which have openings. to receive an attachment plug having blade contacts, said fixture comprising a cover-plate adapted to be secured oYcr Saidoutlet, a lamp socket carried by said plate, said plate comprising'a'thin body ofinsu lation having apertures alined with and overlying the openings in said outlet, said insulation carrying metal strips connected to the"terminals of said socket and protruding into said apertures for frictional engagement with said blade contacts whereby insertion of said plug into said outlet will connect said lamp socket in parallel therewith through said blade contacts. 5.
- a combined cover-plate and pilot-light fixture for use with a flush type'electricaloutlet having two receptaclesadapted to receive two plugs having "blade contacts, said fixture comprising a cover plate adapted to be secured over said outlet, two lamp sockets carried by said plate, said plate comprising a thin body of insulation having apertures alined with and overlying the openings in said receptacles, said insulation carrying a metal strip connected to one terminal of each of said sockets'and protruding into apertures overlying one of the openings of eachflof said receptacles and other m'eta'lstrips separately connectedto the remaining terminals of each'of said sockets and protruding into the apertures overlying the remaining openings of each of said receptacles; whereby insertion of a plug into either of said receptacles'will connect one of said sockets in parallel therewith through said blade contacts.
- a combined cover-plate and pilot-light fixture for use with a"flus'h type' electrical outlet having a contact-carrying receptacle with openings to receive an attachment plug having blade contacts, said fixture comprising a thin metal face plate having openings to overlie the openings in said outlet, two sheets of insulation secured to the rear of said plate and having apertures alined with and overlying the openings in said receptacle, thin resilient metal strips secured between said sheets of insulation and having portions protruding into said apertures, and a lamp socket provided with terminals and mounted on said fixture and having its terminals electrically connected to said strips, whereby insertion of said blade contacts through said apertures and into said receptacle will connect the contacts therein with said terminals.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Description
Sept. 25, 1945- A. FLECKENSTEIN ELECTRIC OUTLET ACCESSORY FIXTURE Filed June 1, 1944 IN VEN TOR.
Patented Sept. 25, 1945 UNITED i STATES .PATENT OFFICE ELECTRIC OUTLET ACCESSORY FIXTURE 7 Andrew Fleckenstein, Windsor, N. Y.
' Application June 1, 1944, Serial No. 538,220
6 Claims.
This invention relates to electrical fixtures and more particularly to an accessory fixture for use with plug-'intype electrical outlets for connecting a pilot-light thereto.
As is well known, the aforesaid type of outlet comprises a receptacle containing spring contacts, which is usually mounted in a metal box set into the wall, 'the receptacle having slots into which standard plugs having'blade contacts may be inserted. The spring contacts within the receptacle frictionally engage the blade contacts or the plug and hold it in place. This engagementis adequate to retain-the plug and make good electrical contact even though the plug is not fully inserted.
In order to close the box in which the receptacle is mounted and provide a' finished appear ance, metal plates having suitable apertures to expose'the face of the receptacle are customarily placed over the box' and securedto the receptacle, usually by a single screw'in the center of the plate." 1
The present invention provides an accessory fixture'incorporating a pilot-light and'a socket therefor, whichfixture may also serve as a substitute-for the usual closure plate. It' comprises a thin body of dielectric material having apertures through which an attachment plug may be inserted into the-receptacle and when this is-done the blade contacts of'the plug connect the socket of the pilot ligh't with the current supply, which is, connected to the contacts within the receptacle, through the'medium of contact members carried by the dielectric'body and adapted to engage the bladecontacts of the plug as they pass through" the apertures. The
invention provides a simple'devi'ce which may be installed without any electrical skill merely by removing the usual cover-plate and replacing it with this device. It is sufliciently thin so as not to interfere with the normal operation of the electrical outlet, and indeed,'rna'y be inade thin enough so that, if desired, it may be used on top of instead of in place of the usual coverplate. Its installation on standard'type outlets, almost universally used, requires only the removal and replacement of the single retaining screw.
The advantages of pilot-lights in connection with electrical outletsare'well recognized. They serve as visible warnings that current is being supplied to some electrical-appliance and reduce the hazards of inadvertently leaving in circuit such .thingsas electric irons, toasters, soldering irons and heaters. Ordinarily, such pilot-lights are to be had only by the installation of a special electrical fixture and the services of a skilled electrician. The device of the present invention converts a standard outlet into an outlet equipped with a pilot-light without requiring any contact with or change in the electrical wiring, and requires no skill for its installation. The device also serves to provide a source of illumination at the outlet which may be used as a night light, for example in sick rooms, nurseries, bathrooms, etc., the light being turned on and oil by the insertion and removal of a standard plug.
In order to fully explain how the invention may be practiced, reference may be had to the following detailed description of the present preferred embodiment thereof, taken in conjunction with the drawing, in which:
Fig. 1 is an elevation of one form of the device having a single pilot-light serving both receptacles of a dual outlet;
Fig. 2 is a similar view of another form having a separate pilot-light for each outlet:
Fig. 3 is a vertical section through a wall outlet showing the device installed; Fig. dis an enlarged detail section on the line 4-4 of Fig. 3, showing the plug partially inserted;
Fig. 5'is a detail elevation of a portion of the metal cover-plate before assembly;
Fig. 6 is a detail of an edge of the assembled device showing one method of marginally securing the sheets of insulation to the metal coverplate; and
Fig. 7 is an enlarged perspective view of a portion of one of the metal strips which makes the contact with a blade of an attachment plug.
Referring to Figs. 1 and 3, a receptacle 8 is mounted in a box 9 covered and closed by the fixture of the invention which comprises a cover plate I 0 having the usual beveled edge H, which plate need be only slightly longer and may be of the same width as standard cover-plates. For maximum strength with minimum thickness it may be made of a rigid metal such as steel. At the upper end it is provided with a casing l2 enclosing a standard socket of any desired type, for example a screw socket, for securing and making contact with the terminals of an electric lamp M. The socket has the usual central terminal l5 and side terminal l6, insulated from each other. Secured to the rear of the coverplate are tWo sheets of thin dielectric material I! and I8 containing apertures land 20 so placed as to be in alinement with the usual openings in the receptacle of a standard electrical outlet. Between the insulating sheets I! and I8 are thin metal strips of the shape shown in dotted lines. The strip 2| is attached to the central terminal l5 of the lamp socket and has enlarged portions 22 and 23 which surround the apertures l9 and 20 in the dielectric material. These enlarged portions are perforated and formed a shown in Fig. '7 to provide a pair of curved lips 25, which are given sufficient resiliency by making the strips of spring metal and slotting the metal as shown at 26. Referring to Fig. 4, it will be seen that the opening 20 in the lower layer of insulation is somewhat larger than the opening IS in the upper layer's'e that the lips 25 are free to spring somewhat as the blade contact 23 of the attachment plug 29 is inserted.
The usual standard receptaole'is provided with openings 30 and around these openings it is usually recessed as shown at 3|. These recesses provide ample space for the slightly protruding lips 25 even though they extend a considerable distance beyond the layer of insulation 18.
The metal strip 33 (Fig. l) which is attached at one end to the outer contact I6 of the lamp socket is similar to the strip 2|. The two strips 2| and 33 are held in place between the layers of insulation I! and I8 which in turn are 'secured in the metal face plate 10. These sheets of insulation may be secured at the edges of the plate as shown in Fig. 6 by folding back the outer edge of the plate and bending it inwardly against the edges of the insulation as shown at 35. Referring to Fig. 5, the plate II] is formed with openings 35 which are stamped out so as to provide tongues 31 which may be bent at right angles and inserted through slots provided in the layers of insulation and crimped around them as shown at 38 in Fig. 4.
The embodiment just described provides a single pilot-light for two outlets. In Fig. 2 there is shown a modified form of the invention in which there are two pilot-lights, one for each'out let. Themetal strip 40 is connected with one terminal l5 of ach of the lamp sockets and pro 'trudes into the apertures overlying one of the openings in each of the two receptacles of the outlet. The metal strip 4| is connected with another terminal l6 of one of the lamp sockets and protrudes into the aperture overlying the other opening of one of the receptacles. The strip 42 is similarly connected to the other lamp socket and associated with the other receptacle.
lit will be observed that with the fixture of the invention in place over an electrical outlet, the pilot-light can be connected in circuit and used as a source of illumination merely by inserting the blade contacts of a plug through the fixture and into the receptacle. This will connect the light to the current supply whether or not any appliance is attached to the plug.
It is within the scope of the invention to provide a manually operated switch'or switches in association with any one'of the conducting strips 2!, 33, 40, 4! or 42 if desired, such switchesto'b'e mounted in any desired manner on the face of the plate II! for easy access. The device may be made otherwise than as above specifically described, for exampl by molding all or part of it from an insulating plastic in which the conductors may be imbedded during forming, thus eliminating the metal plate In altogether.
Considering'these and other possible changes the embodiment specifically described is to be taken as merely illustrative and the invention is to be construed broadly within the purview of the claims.
What is claimed is:
1. An accessory fixture for use with an electrical outlet having a contact-carrying receptacle adapted to receive an attachment plug having blade contacts, said fixture comprising a thin dielectric body adapted to overlie said receptacle and having apertures to receive said blade contacts, contact means carried by said body and adapted to engage said blade contacts when they are inserted in said apertures, a lamp socket supported on said fixture and having terminals, and means electrically connecting said terminals with saidcont'a'c't means.
2. accessory fixture for use with an electrical'outlet "having a contact-carrying receptacle adapted to receive an attachment plug having blade contacts, said fixture comprising a thin dielectric body having apertures to receive said b ade c ntact sp in m t fi gers carriedby said body and protruding into said apertures to engage said blade contacts when they are inserted therein, a lamp socketsupported on said fixture and having terminals, and means electrically connecting said terminals with said fingers.
3. A. combined cover-plate and pilot-light fix ture for use with a flush-type electrical outlet having a contact-carrying receptacle adapted to receive'an attachment plug having blade contacts, said fixture comprising a cover plate for said outlet adapted to overlie said receptacle, insulation carried by said plate and having apertures alined with those in said receptacle, con.- tact means carried by said insulation and protruding into said apertures, a lamp socket mounted on said plate, and means electrically connecting said means with said lamp socket;
A combined cover-plate and pilot-light fixture for use with standard flush-type electrical outlets which have openings. to receive an attachment plug having blade contacts, said fixture comprising a cover-plate adapted to be secured oYcr Saidoutlet, a lamp socket carried by said plate, said plate comprising'a'thin body ofinsu lation having apertures alined with and overlying the openings in said outlet, said insulation carrying metal strips connected to the"terminals of said socket and protruding into said apertures for frictional engagement with said blade contacts whereby insertion of said plug into said outlet will connect said lamp socket in parallel therewith through said blade contacts. 5. A combined cover-plate and pilot-light fixture for use with a flush type'electricaloutlet having two receptaclesadapted to receive two plugs having "blade contacts, said fixture comprising a cover plate adapted to be secured over said outlet, two lamp sockets carried by said plate, said plate comprising a thin body of insulation having apertures alined with and overlying the openings in said receptacles, said insulation carrying a metal strip connected to one terminal of each of said sockets'and protruding into apertures overlying one of the openings of eachflof said receptacles and other m'eta'lstrips separately connectedto the remaining terminals of each'of said sockets and protruding into the apertures overlying the remaining openings of each of said receptacles; whereby insertion of a plug into either of said receptacles'will connect one of said sockets in parallel therewith through said blade contacts. 3
' 6. A combined cover-plate and pilot-light fixture for use with a"flus'h type' electrical outlet having a contact-carrying receptacle with openings to receive an attachment plug having blade contacts, said fixture comprising a thin metal face plate having openings to overlie the openings in said outlet, two sheets of insulation secured to the rear of said plate and having apertures alined with and overlying the openings in said receptacle, thin resilient metal strips secured between said sheets of insulation and having portions protruding into said apertures, and a lamp socket provided with terminals and mounted on said fixture and having its terminals electrically connected to said strips, whereby insertion of said blade contacts through said apertures and into said receptacle will connect the contacts therein with said terminals.
ANDREW FLECKENSTEIN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US538220A US2385620A (en) | 1944-06-01 | 1944-06-01 | Electric outlet accessory fixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US538220A US2385620A (en) | 1944-06-01 | 1944-06-01 | Electric outlet accessory fixture |
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US2385620A true US2385620A (en) | 1945-09-25 |
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US538220A Expired - Lifetime US2385620A (en) | 1944-06-01 | 1944-06-01 | Electric outlet accessory fixture |
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Cited By (56)
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US2449150A (en) * | 1945-11-19 | 1948-09-14 | Schnoll Nathan | Portable indicator device for ordinary two prong plugs |
US2806941A (en) * | 1956-03-30 | 1957-09-17 | Graziani Joseph | Wall lamp |
US3098114A (en) * | 1959-05-12 | 1963-07-16 | Pyle National Co | Junction box for recessed wall installation |
US3421142A (en) * | 1966-06-13 | 1969-01-07 | Westinghouse Electric Corp | Circuit to indicate presence of charging current |
US3753261A (en) * | 1971-12-09 | 1973-08-14 | K Thaxton | Continuous ground and polarity monitor |
US3889132A (en) * | 1974-02-21 | 1975-06-10 | Robert L Vreeland | Timer assembly for outside light |
US4002397A (en) * | 1975-09-29 | 1977-01-11 | Wolsk Associates, Ltd. | Connector for electric plug |
US4451108A (en) * | 1982-08-30 | 1984-05-29 | Skidmore Donald D | Data-terminal service outlet |
US4522455A (en) * | 1983-10-11 | 1985-06-11 | Johnson Richard H | Modular electrified cover plate |
US4617613A (en) * | 1985-01-22 | 1986-10-14 | Rice Keith Q | Illuminated electrical outlet cover plate |
US4774641A (en) * | 1987-03-06 | 1988-09-27 | Rice Keith Q | Illuminated electric outlet cover plate |
US4778399A (en) * | 1987-02-13 | 1988-10-18 | Peter Schenk | Multi-service electrical outlet module |
US5114365A (en) * | 1990-08-30 | 1992-05-19 | William H. Thompson | Wall plate |
US5384428A (en) * | 1992-12-22 | 1995-01-24 | Pacusma Co. Ltd. | Receptacle wall plate with built-in protection circuitry |
US5485356A (en) * | 1994-11-14 | 1996-01-16 | Nguyen; Duc H. | Receptacle power indicator |
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US5590058A (en) * | 1991-04-29 | 1996-12-31 | Trw Inc. | Battery monitor for unobstrusive installation with a battery connector |
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US6183264B1 (en) | 1999-07-19 | 2001-02-06 | HARSáNYI EDUARDO G. | Safety receptacle for electrical outlets |
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-
1944
- 1944-06-01 US US538220A patent/US2385620A/en not_active Expired - Lifetime
Cited By (73)
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