Patents
Sitemap › G08 - Signalling › G08B - Signalling or calling systems; Order telegraphs; Alarm systems › G08B 19 - Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
Patents for G08B 19 - Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow (2,746)
05/1979
05/08/1979US4153881 Early flood warning system
05/01/1979CA1053477A1 Apparatus for incidating rate of ice accretion
04/1979
04/17/1979US4150369 Intrusion alarm system
04/10/1979US4149154 Alarm bell and system
04/03/1979US4148020 Fail-safe alarm system utilizing frequency modulated signal detection
04/03/1979US4148019 Security alarm transmission system
03/1979
03/27/1979CA1051535A1 Pulsed alarm system
03/13/1979US4144528 Alarm system
03/13/1979US4143616 Process machinery control system and individual safety control systems therefor or the like
02/1979
02/20/1979US4141009 Back up alarm system
02/20/1979US4141006 Security system for centralized monitoring and selective reporting of remote alarm conditions
02/20/1979US4140996 Function monitoring system
02/20/1979CA1049113A1 Motor vehicle safety and/or warning devices for excessive forces applied thereto
01/1979
01/23/1979US4136329 Engine condition-responsive shutdown and warning apparatus
12/1978
12/19/1978US4130083 Activating mechanism for flashlamp article
11/1978
11/14/1978CA1042228A1 Water depth measuring device
10/1978
10/10/1978US4119943 Monitor system for construction vehicles
10/03/1978CA1039824A1 Audible alarm device
08/1978
08/22/1978US4109246 Alarm system with repeat of alarm interrupted for priority alarm
08/15/1978US4107646 Centralized warning system for vehicle
08/01/1978US4104618 Remote signaling system
07/1978
07/11/1978US4100543 Audible alarm apparatus particularly adaptable for use with fire and theft security systems
06/1978
06/20/1978US4096473 High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
06/20/1978US4095456 Apparatus for indicating rate of ice accretion
05/1978
05/30/1978US4092643 Security device
05/23/1978US4091384 Monitoring alarm system
02/1978
02/14/1978US4074244 Audible-visual warning alarm system
02/07/1978US4072933 Fire heat detector and/or burglar alarm
02/07/1978US4072925 Warning system for vehicles
12/1977
12/20/1977US4064507 Noise generator circuit for a security system
11/1977
11/29/1977US4060716 Method and apparatus for automatic abnormal events monitor in operating plants
11/15/1977US4058796 System for providing a driving person with helpful information for driving a vehicle
11/08/1977US4057798 Security system
10/1977
10/25/1977US4055844 Detection system
10/18/1977US4054255 Microwave ice detector
10/04/1977US4052720 Dynamic sound controller and method therefor
10/04/1977US4052716 Fire and intruder detection and alarm apparatus
06/1977
06/28/1977US4032907 Remote alarm monitoring and circuit control system
06/14/1977US4030095 Pulsed alarm system
05/1977
05/10/1977US4023139 Security control and alarm system
01/1977
01/04/1977US4001819 Alarm system for combined hazard detections
10/1976
10/12/1976US3986110 Water depth measuring device
08/1976
08/31/1976US3978479 Solid state security system
08/31/1976US3978478 Reset circuit for a security system
07/1976
07/06/1976US3968483 Burglar and fire alarm system
04/1976
04/13/1976US3950746 Or intrusion detection system including spring-biased switching means
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