Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 25 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
Patents for G08B 25 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems (15,949)
12/1990
12/04/1990CA1277400C Anti-theft and locating system
11/1990
11/28/1990CN2066606U Multifunctional radio remote-control alarm
11/21/1990CN2066172U Intercontrol direct connection type fire alarm automatic controller
11/21/1990CN2066171U Anti-kidnaping alarm system with electronic brain monitoring process
11/21/1990CN1047156A Multi-functional computerized warning system
11/20/1990CA1276686C Portable intrusion detection warning system
11/14/1990EP0396535A1 System and method for transferring status information between a plurality of status sites
11/13/1990US4970508 System for monitoring switch locations
11/07/1990EP0396386A2 Fire alarm system
10/1990
10/24/1990CN1010165B Multiple purpose signal system for building
10/23/1990CA1275474C Exit control and surveillance system
10/10/1990EP0391566A1 Alarm systems
10/10/1990EP0290548A4 Digital image acquisition system
10/09/1990US4962473 Emergency action systems including console and security monitoring apparatus
10/09/1990US4962377 Paging by text matching
10/04/1990DE3910514A1 Infrared movement detector
10/03/1990EP0390666A1 Monitoring system for industrial installations
09/1990
09/26/1990EP0388756A2 Vehicle antitheft device with means for remotely indicating a break-in attempt
09/26/1990CN2062884U Miniature multifunctional long-distance alarm
09/26/1990CN2062883U Phonetic alarm with single cable
09/26/1990CN2062882U Multipurpose network alarm
09/25/1990US4959713 Home automation system
09/19/1990EP0387581A2 Arrangement for protecting vehicles against theft
09/18/1990US4958154 System for wireless remote actuation of differing siren programs
09/13/1990DE3908029A1 Installation for securing vehicles against theft
09/12/1990EP0386411A1 Paging by text matching
09/12/1990CN2062093U Language burglar-proof alarm
09/12/1990CN2062092U Wave carrier alarm
09/12/1990CN2062091U Multichannel carrier alarm
09/04/1990US4955000 Ultrasonic personnel location identification system
09/04/1990US4954836 Follow-up system for moving bodies
09/04/1990CA1273679A1 Telesignalling method and device for a bidirectional digital transmission link
08/1990
08/30/1990DE3905836A1 Device for remote control, suitable for help calls and remote control
08/29/1990CN2061313U Fully automatic ultrasonic wave doppler double-control alarm
08/28/1990US4952928 Adaptable electronic monitoring and identification system
08/23/1990WO1990009714A1 Supervised, interactive alarm reporting system
08/22/1990CN2060922U Multi-function alarms making use of computor
08/22/1990CN2060921U Group radio alarming devices
08/21/1990US4951147 Digital image acquisition system
08/21/1990US4951029 Micro-programmable security system
08/14/1990CA1272773A1 Electronic surveillance system and transceiver unit therefor
08/09/1990WO1990009012A1 Fire alarm
08/07/1990US4947152 Patient monitoring system
08/07/1990US4947151 Wheel mounted motion and tampering alarm
08/01/1990EP0380075A1 Radio automatic alarm transfer system
07/1990
07/26/1990WO1990008418A1 Method and arrangement for controlling electrical devices
07/26/1990WO1990008371A1 Photographic security system
07/26/1990DE3901376A1 Emergency call system in crash barriers
07/25/1990CN2059751U Multiuser multifunction electronic alarm device
07/25/1990CN1044180A Regional anti-theft alarming system
07/19/1990DE3900823A1 Car-radio 100% theft safe system
07/18/1990EP0378465A1 Modular surveillance system for industrial installations
07/18/1990CN2059522U Electric carrer anti-theft alarm
07/18/1990CN1008842B Security monitoring system
07/12/1990WO1990007761A1 Multi-state selection switch for personal emergency response system
07/03/1990US4939511 DC bus for discrete signals
06/1990
06/26/1990US4937560 Security system with door deadbolt interlock
06/13/1990EP0372640A1 Personal paging system with determination of the status of a paging unit and of a user thereof
06/13/1990EP0372633A1 Personal paging system with call-back identification
06/13/1990CN2058261U Pocket-size theft deterrent alarm
06/12/1990US4933781 Recording method and a recording and/or reproducing apparatus
06/12/1990US4933668 Aircraft security system
06/12/1990US4933667 Graphic annunciator
06/05/1990US4931769 Method and apparatus for controlling the operation of a security system
06/05/1990CA1270041A1 Security and alarm system
05/1990
05/29/1990US4929927 Surveillance installation
05/23/1990EP0369737A2 Emergency warning means
05/23/1990CN1042436A Wireless automatic warning device for multi-address digital coding
05/22/1990US4928099 Telemetry system for automated remote calling and central dispatch of services, particularly taxicabs
05/16/1990EP0368710A1 Devices for discriminating between a number of simultaneous phenomena
05/15/1990US4926161 Method of monitoring golf carts on a golf course
05/15/1990CA1269140A1 Walk through test system
05/09/1990EP0367486A2 Fire alarm system
05/09/1990CN2057014U Multifunctional intelligent alarm
05/08/1990US4924417 Environmental abnormality alarm apparatus
05/08/1990US4924211 Personnel monitoring system
05/03/1990DE3908885C1 Alarm transmitter
05/02/1990EP0366527A1 Security system with radioelectric transmission
05/02/1990CN2056780U Telephone automatic alarm
05/02/1990CN2056779U Multi-point common wire alarm
05/01/1990US4922229 System for retrieving and preventing the loss or theft of keys
05/01/1990US4922183 Methods, systems and apparatus for detecting changes in variables
04/1990
04/25/1990EP0365372A1 Address and programme centre of an alarm station with a number of fire detectors
04/25/1990CN2056531U Automotive warning device for bus non-threshold
04/25/1990CN2056530U Code warning and warning supervising device
04/17/1990US4918717 Alarm system having bidirectional communication with secured area
04/05/1990WO1990003625A1 Graphic annunciator
04/04/1990EP0361298A1 Collecting system of alarms from a group of stations
04/04/1990EP0361288A2 Security device
04/03/1990US4914422 Safety system
03/1990
03/20/1990US4910493 Security systems
03/15/1990DE3830655A1 Personal protection device having automatic emergency alarm
03/13/1990US4908629 Apparatus for locating and/or tracking stolen or missing vehicles and the like
03/13/1990US4908600 Narrow band synchronized radio communication and alarm system
03/08/1990DE3928573A1 Radiowellen-antwortsendervorrichtung in einem antwortsendersystem Radio wave transmitter answering device in a reply transmitter system
03/08/1990DE3830301A1 Arrangement for identifying a road traffic accident which occurs in a predetermined area
03/07/1990EP0357309A2 Personnel monitoring system
03/06/1990US4906972 Communication system for hazardous areas
03/06/1990US4906853 Apparatus and method for varying the timing of a control signal
03/01/1990DE3928142A1 Fernsteuersystem A remote control system
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