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)
08/1989
08/22/1989US4859989 Security system and signal carrying member thereof
08/22/1989US4858351 Wall securement system
08/17/1989DE3803433A1 Induction loop operating as movement detector (proximity detector), with evaluation electronics connected downstream
08/17/1989DE3803357A1 Electric device
08/17/1989DE3803277A1 Infrared radiation receiver
08/16/1989EP0328438A2 Apparatus and method for protecting the contacts of an electrical switch from current surges
08/16/1989CN2042983U Automatic horizontal alarm for guarding against theft
08/16/1989CN2042982U Screen type warning device
08/16/1989CN2042981U Apparatus for guarding against theft with automatic alarm, recall, shoot function
08/15/1989US4857893 Single chip transponder device
08/15/1989US4857892 Art alarm backing for protecting a work of art
08/15/1989US4857891 Random-filament, multi-directionally responsive marker for use in electronic article surveillance systems
08/09/1989EP0327329A2 Dual status magnetic marker having magnetically biasable flux collectors for use in electronic article surveillance systems
08/09/1989EP0326942A2 Infrared sensor
08/09/1989CN2042615U Simple theft-proof alarm
08/09/1989CN2042614U Universal electronic theft-proof alarm
08/08/1989US4855823 Imaging assembly and mounting for surveillance viewing under remote control
08/08/1989US4855720 Anti-theft ski alarm
08/08/1989US4855719 Electrical receptable alarm switch
08/08/1989US4855717 Security device for conveying systems with unmanned vehicles
08/08/1989US4855716 Security awning window
08/08/1989US4855715 Door mounted alarm assembly
08/08/1989US4855711 Impact detection apparatus
08/02/1989EP0103629B1 Method and apparatus for theft detection systems
08/02/1989CN2042220U Remote sensing and controlled theft-defence device
08/02/1989CN2041946U Multifunctional head support for sitting sleep
08/01/1989US4853692 Infant security system
08/01/1989US4853690 Security alarm process and apparatus
08/01/1989US4853677 Portable intrusion alarm
08/01/1989US4852502 Safety box for safeguarding documents and the like
07/1989
07/27/1989WO1989006806A1 Direction sensitive energy detecting apparatus
07/26/1989CN2041838U Infrared ray warner for guard against theft
07/25/1989US4851815 Device for the monitoring of objects and/or persons
07/25/1989US4851814 Door alarm
07/25/1989CA1257921A1 Environmental indicator device and method
07/19/1989EP0324606A1 Multifunctional optoelectronic control apparatus
07/19/1989EP0324564A2 System for communicating identification information and the like
07/18/1989US4849738 Alarm or warning system for use with an outboard motor
07/18/1989US4849736 Magnetic marker having a rectangular configuration for electronic article surveillance
07/18/1989US4849635 Intruder perceiving apparatus by means of infrared detection
07/18/1989CA1257657A1 Electronic alarm apparatus
07/13/1989WO1989006302A1 Unit comprising two or more panes of glass permanently secured together
07/12/1989EP0323621A2 Radiation-sensitive switch
07/12/1989EP0323601A2 Radiation detector
07/12/1989EP0323457A1 Motion detector apparatus for responding to edge information contained in a television signal.
07/11/1989US4847719 Apparatus and method for protecting the contacts of an electrical switch from current surges
07/11/1989US4847596 Wallpaper comprising an optical fibre
07/11/1989US4847595 Alarm system
07/11/1989US4847592 Detection plate having pin-shaped attachment means
07/11/1989US4847501 Occupancy detector
07/11/1989US4847488 Sabotage resistant light barrier wherein radiation is polarized into two opposite types of polarization
07/11/1989US4846922 Method of making deactivatable tags
07/11/1989CA1257361A2 Method and apparatus for producing electromagnetic surveillance fields
07/11/1989CA1257358A1 Swimming pool alarm
07/05/1989EP0323266A2 Suppressed transient uniform detection sensitivity pir detector
07/05/1989EP0323041A2 Infant security system
07/05/1989CN2040657U Anti-thief alarm with pneumatic balance type optical fiber transmission
07/05/1989CN2040656U Anti-thief glass
07/04/1989US4845509 Multiple loop receiving device in a security system
07/04/1989CA1256976A1 Self-diagnostic ultrasonic intrusion detection system
06/1989
06/29/1989WO1989006027A1 A security hinge utilizing concealed radiative sensing to detect hinge position
06/29/1989WO1989005986A1 Infrared detector
06/29/1989WO1989005984A1 Process for adapting the frequency band of an oscillating circuit made from a metal-plastic-metal sandwich foil useful as an identification label, and sandwich foil for implementing the process
06/28/1989EP0322128A2 Leaky cables
06/27/1989US4843404 Tag web of spiral conductors
06/27/1989US4843375 Roll-up alarm screen assembly and shipping container therefor
06/27/1989US4843374 Door annunciator
06/27/1989US4843371 Burglar-alarm system for briefcase
06/27/1989US4843244 Security sensors
06/27/1989CA1256487A2 Method and apparatus for target reactivation
06/21/1989EP0321051A2 Pyroelectric infrared sensors
06/21/1989EP0173735B1 A multiplexed alarm system
06/20/1989US4841285 Tilt-responsive display case alarm
06/20/1989US4841284 Infrared intrusion detection system incorporating a fresnel lens and a mirror
06/20/1989US4841283 Security hinge utilizing concealed radiative sensing to detect hinge position
06/20/1989US4841256 Piezoelectric phase locked loop circuit
06/14/1989EP0320470A2 Remotely partitionable antitheft system
06/14/1989EP0319876A2 Motion alarm with an infrared detector
06/14/1989EP0319637A2 Magnetic theft or intrusion security system and suitable metallic sensor element therefor
06/13/1989US4839632 Intrusion alarm screen assembly
06/13/1989US4839631 Monitor control apparatus
06/13/1989US4839630 Emergency signal device
06/13/1989CA1255785A1 Panoramic video surveillance device
06/13/1989CA1255773A1 Electronic surveillance using self-powered article attached tags
06/08/1989DE3740113A1 Device for monitoring an object outdoors
06/07/1989EP0319248A2 Economic, multi-directionally responsive marker for use in electronic article surveillance systems
06/07/1989CN2039043U Thief-proof door bell
06/07/1989CN1033330A Fault-detecting intrusion detection device
06/06/1989US4837574 Near-field monostatic intrusion detection system
06/06/1989US4837558 Glass break detector
06/06/1989US4837557 Combination alarm and lock device with sensitivity adjustment
06/06/1989US4837555 Pressure-responsive security alarm
06/06/1989US4837478 Near-infrared ray radiation illuminator and near-infrared ray image pick-up device
06/06/1989US4835905 Door position indicator for a door closer
06/01/1989WO1989004977A1 Electronic device for detecting a product marker at the exit of a store
05/1989
05/31/1989EP0318039A2 An emergency watching system using an infrared image processing
05/31/1989EP0317651A2 Electronic theft detection apparatus
05/31/1989CN2038651U Anti-theft alarming device
05/31/1989CN2038535U Multifunction telecontrolled door opener
05/30/1989US4835524 Deactivatable security tag
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