FR819107A - Perfectionnements aux projecteurs - Google Patents

Perfectionnements aux projecteurs

Info

Publication number: FR819107A
Authority: FR; France
Prior art keywords: refinements; projector; projector refinements
Prior art date: 1936-03-13
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

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Compagnie des Lampes

Original Assignee

Compagnie des Lampes

Priority date (The priority date 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 date listed.)

1936-03-13

Filing date

1937-03-12

Publication date

1937-10-11

1937-03-12 Application filed by Compagnie des Lampes filed Critical Compagnie des Lampes

1937-10-11 Application granted granted Critical

1937-10-11 Publication of FR819107A publication Critical patent/FR819107A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/26—Closing of vessels
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/40—Leading-in conductors

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Non-Portable Lighting Devices Or Systems Thereof (AREA)

FR819107D 1936-03-13 1937-03-12 Perfectionnements aux projecteurs Expired FR819107A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US68714A US2190528A (en)	1936-03-13	1936-03-13	Electric projection device

Publications (1)

Publication Number	Publication Date
FR819107A true FR819107A (fr)	1937-10-11

Family

ID=22084261

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
FR819107D Expired FR819107A (fr)	1936-03-13	1937-03-12	Perfectionnements aux projecteurs
FR49327D Expired FR49327E (fr)	1936-03-13	1938-03-25	Perfectionnements aux projecteurs

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
FR49327D Expired FR49327E (fr)	1936-03-13	1938-03-25	Perfectionnements aux projecteurs

Country Status (3)

Country	Link
US (1)	US2190528A (fr)
DE (1)	DE665802C (fr)
FR (2)	FR819107A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1067931B (fr) *		1959-10-29
US2707850A (en) *	1951-04-05	1955-05-10	Corning Glass Works	Method of welding aluminum to glass and article made thereby
US2739227A (en) *	1952-07-02	1956-03-20	Gen Motors Corp	Sealed beam lighting unit
US2893442A (en) *	1953-03-30	1959-07-07	Genin Paul	Reinforcing woven materials for making laminated articles
US2752481A (en) *	1953-07-03	1956-06-26	Gen Motors Corp	Sealed beam lighting unit
US2818521A (en) *	1954-01-14	1957-12-31	Scarborough Associates Inc	Lamp
US2810405A (en) *	1955-04-29	1957-10-22	Huau Marguerite	Material in glass fibre and new industrial product resulting therefrom
US2869588A (en) *	1955-12-19	1959-01-20	H W Schwab Textile Corp	Woven fabric
US3715613A (en) *	1971-05-13	1973-02-06	Varian Associates	Sealed high-pressure arc lamp and socket therefor
US3936686A (en) *	1973-05-07	1976-02-03	Moore Donald W	Reflector lamp cooling and containing assemblies
DE2323520A1 (de) *	1973-05-10	1974-11-28	Bosch Gmbh Robert	Gasdichter scheinwerfer fuer kraftfahrzeuge

1936
- 1936-03-13 US US68714A patent/US2190528A/en not_active Expired - Lifetime
1937
- 1937-03-12 FR FR819107D patent/FR819107A/fr not_active Expired
- 1937-03-14 DE DEP74888D patent/DE665802C/de not_active Expired
1938
- 1938-03-25 FR FR49327D patent/FR49327E/fr not_active Expired

Also Published As

Publication number	Publication date
FR49327E (fr)	1939-02-17
DE665802C (de)	1938-10-04
US2190528A (en)	1940-02-13

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