Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 13 - Burglar, theft, or intruder alarms
Patents for G08B 13 - Burglar, theft, or intruder alarms (42,025)
10/1990
10/04/1990DE3909814A1 Glass-break alarm device for monitoring window panes
10/03/1990CN2063261U Hidden anti-theft alarm controller
10/03/1990CN2063260U Locating-type sensor
10/03/1990CN2063259U Anti-theft alarm
10/02/1990US4960995 Radiation detector
10/02/1990US4960651 Magnetic devices
09/1990
09/27/1990DE3909073A1 Method and circuit arrangement for continuous fail-safe testing of an infrared sensor device
09/26/1990EP0388609A2 Electronic antipilferage device and method for the operation of such a device
09/26/1990CN2062879U High-voltage alarm
09/26/1990CN2062878U Electronic anti-theft alarm
09/25/1990US4959817 Intruder target monitoring sonar alarm system
09/25/1990US4959635 Lock
09/25/1990CA1274582A1 Electrical control having automatic mode selection
09/20/1990WO1990010921A1 A method for detecting external influence on an optical cable
09/19/1990EP0388352A1 One way light barrier arrangement
09/19/1990EP0387996A2 A stress wave load cell
09/19/1990EP0387970A1 Shoplifting detection system of the transmission type
09/19/1990CN2062476U Multi-functional anti-theft warner
09/19/1990CN2062475U Ultrasonic anti-theft warner for motor vehicles
09/19/1990CN2062474U Anti-theft warner of tv set and its special fixing driver
09/19/1990CN2062473U Anti-theft device of inductive door bell
09/19/1990CN2062472U Anti-prizing warner of door lock
09/12/1990WO1990010920A1 Monitoring system and apparatus
09/12/1990EP0386134A1 Antenna system for magnetic and resonant circuit detection.
09/12/1990EP0092555B1 Tag-shaped identification device attachable to an object
09/12/1990CN2062085U Theft-proof trigger alarm
09/12/1990CN2062084U Multi-function sound-light alarm for direction and position
09/12/1990CN2062083U Theft-proof electronic alarm by human body induction
09/12/1990CN2062082U 强电场报警器 Strong electric alarm
09/12/1990CN2062081U Domestic lock controlled alarm
09/12/1990CA2049049A1 Monitoring system and apparatus
09/11/1990US4956636 E.A.S. tag having a control component with selectively magnetizeable regions
09/07/1990WO1990010280A1 Electronic monitoring arrangement
09/07/1990WO1990010204A1 A pressure sensor
09/05/1990EP0385862A1 Manufacturing process of an antiburglar security mesh, and mesh made by this process
09/05/1990EP0385800A1 Anti-theft device
09/05/1990EP0385540A1 Detection label for an anti-shop-lifting system
09/05/1990EP0385206A1 Valuables box
09/05/1990EP0385049A1 Door guard
09/05/1990EP0181327B1 Resonant tag and deactivator for use in an electronic security system
09/05/1990CN2061715U Burglar alarm
09/05/1990CN2061714U Alarm
09/04/1990US4954886 Closed circuit television apparatus with a remote control television camera
09/04/1990US4954814 Tag and method of making same
09/04/1990US4954813 Portable warning device
09/04/1990US4954811 Penetration sensor
08/1990
08/30/1990DE4005840A1 On-off switching of alarm unit for goods - has pin with resistor circuit to control activation
08/30/1990DE3906080A1 Object-monitoring method
08/30/1990DE3905514A1 Signal transmitter unit, in particular alarm system for detecting changes in the load on parts of land or buildings
08/29/1990CN2061309U Electronic alarm for vehicle anti-climbing and goods theft-proof
08/29/1990CN2061308U Joint defence type anti-prying door electronic alarm
08/29/1990CN2061307U Induction type time-controlled cipher theft-proof alarm
08/28/1990US4953144 Third-party detection around pipelines
08/28/1990US4952912 Alarm system
08/28/1990US4952911 Scanning intrusion detection device
08/28/1990US4952855 System for monitoring the closing of a door
08/28/1990US4952808 Thermal radiation detection apparatus
08/28/1990CA1273428A1 Intrusion detection apparatus
08/23/1990WO1990009648A1 Merchandise security system utilizing rf transmitter
08/22/1990CN2060919U Sensor
08/22/1990CN2060918U Multi-function remote sense monitors
08/22/1990CN2060917U Theft-guarding alarms for electric line
08/22/1990CN2060916U Alarming equipment with electronic guarding device
08/22/1990CN2060915U Detective devices using infrared ray
08/22/1990CN2060914U Civil theft-guarding alarms for use on doors and windows
08/22/1990CN2060913U Concealing type multi-function theft-guarding alarms
08/22/1990CN2060912U Theft-guarding alarms with multi-function
08/22/1990CN2060911U Alarm arrangement for preventing theft of roller gate
08/22/1990CN2060910U Decoration mat being able to ensuring safty
08/21/1990US4951147 Digital image acquisition system
08/21/1990US4950550 Security systems; soft magnetic alloy core, hard magnetic alloy jacket
08/21/1990CA1273083A1 Remote control apparatus for a property protection device
08/15/1990CN2060575U Anti-theft level sloping alarm
08/14/1990US4949186 Vehicle mounted surveillance system
08/14/1990US4949181 Closed circuit television apparatus for remotely controlling television cameras
08/14/1990US4949173 Security surveillance system with intermittent magnetic recording/reproducing device
08/14/1990US4949075 Portable optical alarm system for area protection
08/14/1990US4949074 Method of intrusion detection
08/14/1990US4949073 Glass breakage detector with self-aligning housing
08/14/1990CA1272774A1 Electromagnetic detection system, as well as a responder for such a system
08/09/1990WO1990009011A1 Electronic article surveillance device with remote deactivation
08/09/1990WO1990009010A2 Article input and removal monitoring system and method for article storage systems and weight sensor therefor
08/09/1990WO1990008965A1 Personalized passive identification device
08/09/1990DE3916079C1 Capacitative monitor for safe - is of insulated metal to form capacitance in series or parallel with switches assigned to lock and door
08/09/1990DE3915068C1 Safe with alarm and monitor - has narrow lead(s) broken by rod-shaped locking elements in retention region if forced open
08/08/1990EP0381630A2 Method and apparatus for surveillance of premises
08/02/1990DE3940006A1 Optical surveillance esp. for secure doors or windows - relies upon variation of attenuation in light guide, caused by deformation through mechanical coupling to secured object
08/01/1990EP0380426A1 Resonant tag and method of manufacturing the same
08/01/1990CN2060002U Supersonic anti-theft alarm
08/01/1990CN2060001U Wired anti-theft alarm
07/1990
07/31/1990US4945367 Surveillance camera system
07/31/1990US4945347 Motion and orientation responsive device for seismic, intrusion, and tilt alarms and the like
07/31/1990US4945341 Alarm system for electrical devices
07/31/1990US4945340 Tamper-resistant magnetic security system
07/31/1990US4945339 Anti-theft sensor marker
07/31/1990US4945335 Electronic unit operable in conjunction with body unit
07/31/1990CA1272266A1 Anti-theft product rack and method
07/31/1990CA1272264A1 Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems
07/26/1990WO1990008371A1 Photographic security system
07/26/1990WO1990008369A1 Ultrasonic volumetric alarm system
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