Patents for G08B 13 - Burglar, theft, or intruder alarms (42,025) |
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11/23/1988 | EP0291726A2 Amorphous alloy for strip-shaped sensor elements |
11/22/1988 | US4785743 Protected room with an electrical interruptor and its application |
11/22/1988 | EP0195070A4 Method and apparatus for producing electromagnetic surveillance fields. |
11/22/1988 | CA1245321A1 Method, system and apparatus for use in article surveillance |
11/22/1988 | CA1245104A1 Door alarm |
11/17/1988 | EP0291412A1 Device for detecting a fraudulent interference with a locking member |
11/17/1988 | EP0290548A1 Digital image acquisition system. |
11/17/1988 | DE3715871A1 Circuit arrangement |
11/15/1988 | US4785289 Timer controlled fire and burglar alarm system |
11/15/1988 | US4785174 Interferometric thermal detector |
11/15/1988 | CA1244901A1 Infrared intrusion detector |
11/10/1988 | DE3713463A1 Alarm device for the protection of articles of clothing against theft |
11/09/1988 | EP0289641A1 Security fenee with security wires attached to posts via detectors |
11/09/1988 | EP0289621A1 Passive infrared burglar sensor equipped with visual field interruption monitor mechanism |
11/09/1988 | EP0289551A1 Method for protecting objects against theft and objects protected according to such method. |
11/08/1988 | US4783833 Method of extracting an image of a moving object |
11/08/1988 | US4783646 Stolen article detection tag sheet, and method for manufacturing the same |
11/03/1988 | WO1988008595A1 Capacitance proximity sensor |
11/03/1988 | WO1988008594A1 Sensing element for an alarm system |
11/03/1988 | DE3743426A1 Alarm device for protecting articles of clothing against theft |
11/03/1988 | DE3713222A1 Gate |
11/03/1988 | DE3712865A1 Method for detecting moving targets by means of an optronic (electrooptic) image recording device (camera) |
11/02/1988 | EP0288471A1 Improvements relating to alarm systems |
10/26/1988 | EP0287905A1 Method for deactivating a resonant target, and circuit for carrying out this method |
10/26/1988 | EP0287827A2 Method for the operation of a pyrodetector for the detection and/or determination of the velocity of a moving object |
10/26/1988 | CN87210755U Multifunctional wireless alarm |
10/25/1988 | US4780706 Pet or infant training device and method |
10/25/1988 | US4780704 Wallet anti-theft device |
10/20/1988 | WO1988008181A1 Continuously armed high reliability pulse train processor |
10/20/1988 | WO1988008180A1 Electronic alarm label |
10/20/1988 | DE3710614A1 Motion detector |
10/19/1988 | EP0287402A2 Electronic control unit |
10/19/1988 | EP0286897A1 Method and device for monitoring closed spaces |
10/19/1988 | CN87107286A Method and apparatus for detecting counterfeit articles |
10/18/1988 | US4779134 Apparatus and method for viewing of multiple television stations and switching among them |
10/18/1988 | US4779095 For use with a vehicle to be monitored |
10/18/1988 | US4779077 Continuously armed high reliability pulse train processor |
10/18/1988 | US4779076 Deactivatable coded marker and magnetic article surveillance system |
10/18/1988 | US4778996 Ceiling mounted passive infrared intrusion detector with pyramidal mirror |
10/18/1988 | US4778770 Process for making sensor elements in a retaining frame for a pyrodetector |
10/18/1988 | US4778552 Alarm tag and method of making and deactivating it |
10/18/1988 | CA1243383A1 Alarm device for code driven electromechanical control device |
10/18/1988 | CA1243381A1 Shockproof and tearproof code driven electromechanical control device |
10/13/1988 | DE3710561A1 Infrared motion detector |
10/13/1988 | DE3701136A1 Automatic shutdown of alarms for alarm installations securing doors in houses and flats |
10/12/1988 | EP0285922A2 Case for video-camera |
10/12/1988 | EP0285641A1 Sticker for alarm system |
10/11/1988 | US4777527 Moving video surveillance system |
10/11/1988 | US4777526 Security monitor system |
10/11/1988 | US4777476 Security fence |
10/06/1988 | WO1988007732A1 Microwave proximity sensor |
10/05/1988 | EP0285559A1 Resonant marker and method of making it |
10/05/1988 | EP0285117A2 Apparatus for controlling or regulating heating, ventilation or air conditioning plants |
10/05/1988 | CN87208610U Anti-theft warner |
10/04/1988 | US4775853 Device and installation for the instantaneous detection of one or more physical phenomena having a character of risk |
09/28/1988 | EP0283495A1 An arrangement in a purse or bag secured against theft. |
09/27/1988 | US4774570 System for processing video signal for detecting changes in video data and security monitoring system utilizing the same |
09/27/1988 | US4774521 Resonant marker for use with radio frequency electronic article surveillance system |
09/27/1988 | US4774389 Intrusion detector switch system with wire bristle switch controls |
09/27/1988 | US4773719 Optical novelty filter |
09/27/1988 | CA1242505A1 Louvered window with alarm circuit |
09/21/1988 | EP0283376A1 Magnetically controlled detector of the movement of a mobile part with respect to a fixed part for the opening of an enclosure |
09/21/1988 | EP0282544A1 Portable optical alarm system for area protection |
09/20/1988 | US4772945 Surveillance system |
09/20/1988 | US4772880 Shopping cart anti-theft system |
09/20/1988 | US4772879 Motion sensing alarm |
09/20/1988 | US4772878 Merchandise theft deterrent sensor |
09/20/1988 | US4772875 Intrusion detection system |
09/20/1988 | US4772797 Ceiling mounted passive infrared intrusion detector with prismatic window |
09/15/1988 | DE3706680A1 Method and device for monitoring electricity pylons for intentional damage |
09/14/1988 | EP0281674A1 Method for preventing the theft of radio receivers |
09/13/1988 | US4771273 Anti-tamper bracket |
09/13/1988 | CA1242014A1 Signal receptor-reradiator and surveillance tag using the same |
09/13/1988 | CA1242012A1 Monitoring system |
09/08/1988 | DE3706324A1 Device for monitoring an object in the open air |
09/07/1988 | WO1988006774A1 Alarm apparatus, preferably in a window structure |
09/07/1988 | EP0281516A2 Security device against non-authorized climbing of fences or walls |
09/07/1988 | EP0281033A2 Break sensor |
09/06/1988 | US4769631 Method, system and apparatus for magnetic surveillance of articles |
09/06/1988 | US4769545 Motion detector |
09/06/1988 | CA1241722A1 Infrared intrusion detector |
08/31/1988 | EP0280361A1 A flexible detection label |
08/31/1988 | EP0280137A1 Safety device for a system employing driverless vehicles |
08/31/1988 | EP0279961A2 A security means for a suitcase or the like |
08/31/1988 | CN88210264U High-strength burglar alarm glass |
08/31/1988 | CN87212782U Theft-proof alarm device for fish pond |
08/30/1988 | US4768090 Surveillance device using video camera |
08/30/1988 | US4768020 Hot body intrusion activated light control unit with daylight photocell deactivation override |
08/30/1988 | CA1241404A1 Detection means |
08/24/1988 | EP0279802A2 Ant-theft device |
08/24/1988 | EP0278955A1 Motion detection apparatus employing information contained in the frequency spectrum of a television signal. |
08/24/1988 | CN87212505U Active infrared warner for preventing invader |
08/23/1988 | US4766491 Adaptor for a video monitoring system |
08/23/1988 | CA1241097A1 Identification device |
08/17/1988 | EP0278538A1 Monitor device |
08/17/1988 | EP0278492A2 Detection of unauthorized removal of theft detection target devices |
08/16/1988 | US4764756 Intrusion detector using a vibration-responsive cable |
08/16/1988 | US4764755 Intruder detection system with false-alarm-minimizing circuitry |
08/16/1988 | US4764008 Surveillance housing assembly |
08/16/1988 | CA1240772A1 Electronic surveillance system employing the doppler effect |