GB1292380A - Electronic surveillance systems - Google Patents
Electronic surveillance systemsInfo
- Publication number
- GB1292380A GB1292380A GB04101/70A GB1410170A GB1292380A GB 1292380 A GB1292380 A GB 1292380A GB 04101/70 A GB04101/70 A GB 04101/70A GB 1410170 A GB1410170 A GB 1410170A GB 1292380 A GB1292380 A GB 1292380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- label
- resonator
- acoustic
- energy
- transmitter
- 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
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
- G08B13/2422—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using acoustic or microwave tags
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/0672—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with resonating marks
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/02—Methods or arrangements for sensing record carriers, e.g. for reading patterns by pneumatic or hydraulic means, e.g. sensing punched holes with compressed air; by sonic means ; by ultrasonic means
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
- G06K7/086—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing passive circuit, e.g. resonant circuit transponders
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2428—Tag details
- G08B13/2437—Tag layered structure, processes for making layered tags
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
- G08B13/2468—Antenna in system and the related signal processing
- G08B13/2471—Antenna signal processing by receiver or emitter
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Computer Security & Cryptography (AREA)
- Automation & Control Theory (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Burglar Alarm Systems (AREA)
Abstract
1292380 Ultrasonic locating systems UNISEARCH Ltd 24 March 1970 [2 April 1969] 14101/70 Heading H4D [Also in Division G4] A theft-detection system, e.g. for preventing shop-lifting, comprises a pulse transmitter 1 of acoustic or electromagnetic energy, a passive label 3 for attachment to an article to be protected, means on the label to receive the acoustic or electromagnetic energy and to transmit a reply in energy of the other form, and a gated receiver 5 turned on at a predetermined time after each transmitter pulse whereby replies from labels outside the region are eliminated. The transmitter 1 may be a 100w., 100kHz pulsed oscillator feeding a barium titanate resonator and horn 2, the acoustic energy of which is received by flexural-mode quartz resonator 9 mounted between cardboard covers, forming the label 3 attached to the article being protected. Electrodes 10 and 11 plated on the resonator 9 are connected to a printed circuit coil 12 radiation from which is picked up by Helmholtz coil-pair 4 and detected by a gated receiver 5 (Fig. 6, not shown) which operates an alarm. Modifications.-The label may alternatively employ a magnetostrictive resonator which converts acoustic energy to electromagnetic energy.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU5296869 | 1969-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1292380A true GB1292380A (en) | 1972-10-11 |
Family
ID=3739076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB04101/70A Expired GB1292380A (en) | 1969-04-02 | 1970-03-24 | Electronic surveillance systems |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3755803A (en) |
| BE (1) | BE748054A (en) |
| BR (1) | BR7017852D0 (en) |
| CH (1) | CH516853A (en) |
| DE (1) | DE2015295C2 (en) |
| FR (1) | FR2038184A1 (en) |
| GB (1) | GB1292380A (en) |
| IL (1) | IL34185A0 (en) |
| LU (1) | LU60653A1 (en) |
| NL (1) | NL7004748A (en) |
| SE (1) | SE394042B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321586A (en) | 1980-08-21 | 1982-03-23 | Knogo Corporation | Article theft detection |
| US4481428A (en) * | 1981-05-19 | 1984-11-06 | Security Tag Systems, Inc. | Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation |
| WO2016176728A1 (en) | 2015-05-06 | 2016-11-10 | Aleis Pty Ltd | Antenna apparatus |
Families Citing this family (59)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3849633A (en) * | 1972-01-04 | 1974-11-19 | Westinghouse Electric Corp | Object identifying apparatus |
| US3838409A (en) * | 1973-04-13 | 1974-09-24 | Knogo Corp | Field strength uniformity control system for article theft detection system |
| US3914829A (en) * | 1973-06-01 | 1975-10-28 | Eaton Corp | Releasably attachable clip |
| US4000488A (en) * | 1974-04-19 | 1976-12-28 | Bernard Ephraim | Label alarm system |
| US4134538A (en) * | 1976-03-18 | 1979-01-16 | La Societe Metalimphy | Process and apparatus for identification of objects |
| JPS534410A (en) * | 1976-07-02 | 1978-01-17 | Masakiyo Negishi | Device for transmitting information wave using resonator |
| US4223830A (en) * | 1978-08-18 | 1980-09-23 | Walton Charles A | Identification system |
| US4236068A (en) * | 1979-03-29 | 1980-11-25 | Walton Charles A | Personal identification and signaling system |
| US4342904A (en) * | 1980-10-27 | 1982-08-03 | Minnesota Mining And Manufacturing Company | Lightweight ferromagnetic marker for the detection of objects having markers secured thereto |
| US4725841A (en) * | 1983-06-30 | 1988-02-16 | X-Cyte, Inc. | System for interrogating a passive transponder carrying phase-encoded information |
| US4625207A (en) * | 1983-06-30 | 1986-11-25 | X-Cyte Inc. | Surface acoustic wave passive transponder having amplitude and phase-modifying surface pads |
| US4605929A (en) * | 1983-06-30 | 1986-08-12 | X-Cyte Inc. | Surface acoustic wave passive transponder having optimally-sized transducers |
| US4625208A (en) * | 1983-06-30 | 1986-11-25 | X-Cyte Inc. | Surface acoustic wave passive transponder having acoustic wave reflectors |
| US4604623A (en) * | 1983-06-30 | 1986-08-05 | X-Cyte Inc. | Surface acoustic wave passive transponder having non-reflective transducers and pads |
| US4620191A (en) * | 1983-06-30 | 1986-10-28 | Halvor Skeie | Surface acoustic wave passive transponder having parallel acoustic wave paths |
| US4600829A (en) * | 1984-04-02 | 1986-07-15 | Walton Charles A | Electronic proximity identification and recognition system with isolated two-way coupling |
| AU564509B2 (en) * | 1984-10-09 | 1987-08-13 | X-Cyte Inc. | Phase-encoded transponder interrogation |
| AU565454B2 (en) * | 1984-10-09 | 1987-09-17 | X-Cyte Inc. | Saw transponder |
| US4818855A (en) * | 1985-01-11 | 1989-04-04 | Indala Corporation | Identification system |
| US4798175A (en) * | 1986-10-09 | 1989-01-17 | Alfa-Laval Agri, Inc. | Electronic identification system |
| NL8702426A (en) * | 1987-10-12 | 1989-05-01 | Nedap Nv | METHOD AND APPARATUS FOR IDENTIFYING METAL PALLETS AND CONTAINERS. |
| DE68907125T2 (en) * | 1988-04-08 | 1994-03-17 | Esselte Meto Int Gmbh | Anti-theft labels and their use. |
| GB8810178D0 (en) * | 1988-04-29 | 1988-06-02 | Scient Generics Ltd | Antipilferage systems |
| CA2020952A1 (en) * | 1989-12-05 | 1991-06-06 | Frank Drucker | Audible tag for magnetic electronic article surveillance systems |
| US5012224A (en) * | 1989-12-05 | 1991-04-30 | Sensormatic Electronics Corporation | Audible tag for magnetic electronic article surveillance systems |
| ATE313134T1 (en) * | 1991-04-03 | 2005-12-15 | Tagsys Sa | ITEM SORTING SYSTEM |
| US5367289A (en) * | 1991-11-27 | 1994-11-22 | Sensormatic Electronics Corporation | Alarm tag for an electronic article surveillance system |
| IL107636A (en) * | 1992-11-18 | 1998-02-08 | Csir | Detection of multiple articles |
| ZA941671B (en) * | 1993-03-11 | 1994-10-12 | Csir | Attaching an electronic circuit to a substrate. |
| CA2147746A1 (en) * | 1993-08-31 | 1995-03-09 | Hiroyuki Fujiuchi | Theft preventive apparatus having alarm output |
| CA2196158A1 (en) * | 1994-07-29 | 1996-02-15 | Hiroyuki Fujiuchi | Burglar alarm apparatus and radio receiver |
| US5959532A (en) * | 1994-07-29 | 1999-09-28 | Kubota Corporation | Theft preventive apparatus and radio wave receiving signaling device |
| US5552778A (en) * | 1994-11-23 | 1996-09-03 | International Business Machines Corporation | Multibit bimorph magnetic tags using acoustic or magnetic interrogation for identification of an object coupled thereto |
| FR2727549B1 (en) * | 1994-11-29 | 1997-03-28 | Verardi Giorgio Adriano | GLOBAL AND UNCONDITIONAL SECURITY PROCESS IN THE MONITORING OF ARTICLES (EAS) ON A PREDETERMINED PLACE BY MESH OF PSEUDO-SATELLITES AND ACQUISITION UNITS |
| US7002475B2 (en) * | 1997-12-31 | 2006-02-21 | Intermec Ip Corp. | Combination radio frequency identification transponder (RFID tag) and magnetic electronic article surveillance (EAS) tag |
| US7123129B1 (en) | 1995-08-14 | 2006-10-17 | Intermec Ip Corp. | Modulation of the resonant frequency of a circuit using an energy field |
| US5812065A (en) | 1995-08-14 | 1998-09-22 | International Business Machines Corporation | Modulation of the resonant frequency of a circuit using an energy field |
| AUPO085596A0 (en) * | 1996-07-05 | 1996-07-25 | Integrated Silicon Design Pty Ltd | Presence and data labels |
| US6107910A (en) * | 1996-11-29 | 2000-08-22 | X-Cyte, Inc. | Dual mode transmitter/receiver and decoder for RF transponder tags |
| US5883575A (en) * | 1997-08-12 | 1999-03-16 | Hewlett-Packard Company | RF-tags utilizing thin film bulk wave acoustic resonators |
| US6208062B1 (en) | 1997-08-18 | 2001-03-27 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
| US6633226B1 (en) | 1997-08-18 | 2003-10-14 | X-Cyte, Inc. | Frequency hopping spread spectrum passive acoustic wave identification device |
| US5986382A (en) | 1997-08-18 | 1999-11-16 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
| US6114971A (en) * | 1997-08-18 | 2000-09-05 | X-Cyte, Inc. | Frequency hopping spread spectrum passive acoustic wave identification device |
| US6060815A (en) * | 1997-08-18 | 2000-05-09 | X-Cyte, Inc. | Frequency mixing passive transponder |
| US6775616B1 (en) | 1999-02-10 | 2004-08-10 | X-Cyte, Inc. | Environmental location system |
| US6259991B1 (en) | 1999-02-10 | 2001-07-10 | X-Cyte Inc. | Environmental location system |
| DE29909681U1 (en) * | 1999-06-02 | 1999-08-26 | Cascades Arnsberg GmbH, 59821 Arnsberg | Sales packaging |
| US6229442B1 (en) * | 2000-03-14 | 2001-05-08 | Motorola, Inc, | Radio frequency identification device having displacement current control and method thereof |
| US6995654B2 (en) * | 2000-12-15 | 2006-02-07 | X-Cyte, Inc. | Apparatus and method for locating a tagged item |
| US6724311B1 (en) | 2001-11-09 | 2004-04-20 | B&G Plastics, Inc. | Anti-theft hang tag |
| DE10221484B4 (en) * | 2002-05-15 | 2012-10-11 | Hans-Joachim Laue | Device for powering a data acquisition and data transfer unit and data acquisition and transfer unit |
| US20040069847A1 (en) * | 2002-10-15 | 2004-04-15 | Chester Kolton | Electronic article surveillance marker assembly |
| US7086593B2 (en) * | 2003-04-30 | 2006-08-08 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Magnetic field response measurement acquisition system |
| US9285471B2 (en) * | 2005-11-21 | 2016-03-15 | Hewlett-Packard Development Company, L.P. | Method and apparatus for localization of RFID tags |
| WO2009051783A1 (en) * | 2007-10-19 | 2009-04-23 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Wireless damage location sensing system |
| US8497776B2 (en) * | 2010-12-29 | 2013-07-30 | Symbol Technologies, Inc. | Radio frequency identification system and method used to perform electronic article surveillance |
| US8692562B2 (en) | 2011-08-01 | 2014-04-08 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Wireless open-circuit in-plane strain and displacement sensor requiring no electrical connections |
| US9329153B2 (en) | 2013-01-02 | 2016-05-03 | United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of mapping anomalies in homogenous material |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE406240C (en) * | 1922-12-06 | 1924-11-14 | Atlas Werke Akt Ges | Method for measuring distances at sea through the time difference between the transmission of a signal on a ship and the arrival of a response signal |
| DE704878C (en) * | 1933-08-31 | 1941-04-09 | Rca Corp | Wireless signaling device to indicate certain points |
| NL91659C (en) * | 1950-05-13 | |||
| US2774060A (en) * | 1953-06-15 | 1956-12-11 | Richard B Thompson | Detecting means for stolen goods |
| US2899546A (en) * | 1954-05-25 | 1959-08-11 | hollmann | |
| DE1058580B (en) * | 1956-08-16 | 1959-06-04 | Philips Patentverwaltung | Method for the identification of a moving object from a plurality of similar objects by means of a radar system |
| DE1178331B (en) * | 1957-03-04 | 1964-09-17 | Bendix Corp | Method for the selection of amplitudes and arrangement for measuring the distance by reflecting sound waves, in particular for acoustic height measurement |
| US3031643A (en) * | 1960-05-16 | 1962-04-24 | Nat Company Inc | Transmission line fence burglar alarm |
| US3079599A (en) * | 1961-08-07 | 1963-02-26 | James W Caspers | Aural detection system |
| US3293595A (en) * | 1962-12-29 | 1966-12-20 | Hitachi Ltd | Telemetering system |
| DE1239593B (en) * | 1963-11-16 | 1967-04-27 | Fritz Steiner Dr Ing | Method for indicating the risk of vehicle collisions on motorways and arrangement for carrying out the method |
| GB1085704A (en) * | 1964-10-30 | 1967-10-04 | Nat Res Dev | Apparatus for detecting an object |
| SE321883B (en) * | 1965-03-05 | 1970-03-16 | A Minasy | |
| FR1547366A (en) * | 1965-11-06 | 1968-11-29 | Inst Francais Du Petrole | At-sea beaconing and locating system for a floating installation or an underwater vehicle |
| US3399405A (en) * | 1966-03-29 | 1968-08-27 | Rca Corp | Vehicle identifier system |
| US3500373A (en) * | 1966-05-06 | 1970-03-10 | Nat Bank Of North America The | Method and apparatus for article theft detection |
| NO126975B (en) * | 1967-03-30 | 1973-04-16 | John Welsh | |
| US3389391A (en) * | 1967-05-05 | 1968-06-18 | Miner S Keeler | Vehicle identification responder |
| US3432852A (en) * | 1967-06-19 | 1969-03-11 | Sylvania Electric Prod | Transponder having improved isolation |
| US3577136A (en) * | 1967-08-04 | 1971-05-04 | Security Systems Inc | Short-range signaling system |
| US3631442A (en) * | 1968-03-22 | 1971-12-28 | Robert E Fearon | Anti-shoplifting system |
| US3493955A (en) * | 1968-04-17 | 1970-02-03 | Monere Corp | Method and apparatus for detecting the unauthorized movement of articles |
| US3521280A (en) * | 1969-01-16 | 1970-07-21 | Gen Res Corp | Coded labels |
-
1970
- 1970-03-24 GB GB04101/70A patent/GB1292380A/en not_active Expired
- 1970-03-27 IL IL34185A patent/IL34185A0/en unknown
- 1970-03-27 BE BE748054D patent/BE748054A/en not_active IP Right Cessation
- 1970-03-31 BR BR217852/70A patent/BR7017852D0/en unknown
- 1970-03-31 US US00024319A patent/US3755803A/en not_active Expired - Lifetime
- 1970-03-31 DE DE2015295A patent/DE2015295C2/en not_active Expired
- 1970-03-31 SE SE7004418A patent/SE394042B/en unknown
- 1970-04-01 CH CH481270A patent/CH516853A/en not_active IP Right Cessation
- 1970-04-02 NL NL7004748A patent/NL7004748A/xx unknown
- 1970-04-02 FR FR7011979A patent/FR2038184A1/fr active Pending
- 1970-04-02 LU LU60653D patent/LU60653A1/xx unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321586A (en) | 1980-08-21 | 1982-03-23 | Knogo Corporation | Article theft detection |
| DE3128980A1 (en) * | 1980-08-21 | 1982-04-08 | Knogo Corp., 11801 Hicksville, N.Y. | METHOD AND DEVICE FOR PROTECTING OBJECTS AGAINST THEFT |
| US4481428A (en) * | 1981-05-19 | 1984-11-06 | Security Tag Systems, Inc. | Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation |
| WO2016176728A1 (en) | 2015-05-06 | 2016-11-10 | Aleis Pty Ltd | Antenna apparatus |
| EP3291669A4 (en) * | 2015-05-06 | 2018-05-30 | Aleis Pty Ltd | Antenna apparatus |
| US10333196B2 (en) | 2015-05-06 | 2019-06-25 | Aleis Pty Ltd | Antenna apparatus |
| AU2020202460B2 (en) * | 2015-05-06 | 2022-02-03 | Allflex Australia Pty Limited | Antenna apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2015295A1 (en) | 1970-10-15 |
| BR7017852D0 (en) | 1973-04-17 |
| DE2015295C2 (en) | 1983-10-27 |
| NL7004748A (en) | 1970-10-06 |
| CH516853A (en) | 1971-12-15 |
| IL34185A0 (en) | 1970-05-21 |
| LU60653A1 (en) | 1971-06-14 |
| US3755803A (en) | 1973-08-28 |
| FR2038184A1 (en) | 1971-01-08 |
| SE394042B (en) | 1977-05-31 |
| BE748054A (en) | 1970-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 414F | Notice of opposition given (sect. 14/1949) | ||
| 414B | Case decided by the comptroller ** grants allowed (sect. 14/1949) | ||
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |