| Patents for G08B 1 - Systems for signalling characterised solely by the form of transmission of the signal (7,960) |
|---|
| 03/20/1984 | US4438429 Emergency signal transceiver for disabled car |
| 03/13/1984 | CA1163692A1 Testing coins |
| 02/14/1984 | US4432041 Smoke penetrating emergency light |
| 01/31/1984 | CA1161514A1 Monitoring of elongate magnetically permeable members |
| 11/22/1983 | US4417235 Audible alarm network |
| 11/08/1983 | CA1156738A1 Liquid level detecting device |
| 10/25/1983 | US4411274 Apparatus and method for monitoring the oestrus cycle in female animals |
| 10/12/1983 | EP0091276A2 Sound pattern discrimination system |
| 10/11/1983 | US4409590 Building security, communication and control system |
| 09/20/1983 | CA1154119A1 High density capacitive touch switch array arrangement |
| 09/06/1983 | US4403208 Warning-signal-producing system for a motor vehicle responsive to a vehicle-presence-indicating radio wave signal emitted by another vehicle and indicative of its presence |
| 04/12/1983 | US4380004 Emergency sound detector device |
| 03/09/1983 | EP0073197A1 Means for assisting in locating an object |
| 02/15/1983 | CA1141449A1 Method and apparatus for indicating the onset of parturition |
| 02/08/1983 | CA1141004A1 Alarm system activated by buzzers |
| 01/04/1983 | US4367458 Supervised wireless security system |
| 12/07/1982 | US4363031 Wireless alarm system |
| 12/07/1982 | CA1137207A1 Intrusion alarm system |
| 11/23/1982 | CA1136245A1 Timed audible alarm system utilizing a piezoelectric transducer |
| 09/28/1982 | CA1132678A1 Remote activated alarm |
| 09/08/1982 | EP0059512A2 Improvements in and relating to testing coins |
| 09/08/1982 | EP0059511A2 Improvements in and relating to testing coins |
| 09/01/1982 | EP0058721A1 Ultrasonic communication and security system |
| 07/20/1982 | CA1128165A1 Fibre optic security system |
| 06/29/1982 | CA1126823A1 Alarms between stations with relative motion |
| 06/16/1982 | EP0053735A1 Circuitry for a coin tester |
| 05/27/1982 | WO1982001780A1 Means for assisting in locating an object |
| 03/18/1982 | WO1982000910A1 Ultrasonic communication and security system |
| 01/12/1982 | CA1116284A1 Apparatus and system for wireless reception and transmission of coded audio and/or sonic alarm signals |
| 12/22/1981 | US4307375 Top watcher warning device for trucks and the like |
| 10/27/1981 | US4297677 Personal ambient sound referenced annunciator |
| 10/20/1981 | US4296496 Emergency radio frequency warning device |
| 09/29/1981 | US4292628 Fibre optic security system |
| 09/02/1981 | EP0034887A1 Improvements in and relating to testing coins |
| 08/20/1981 | WO1981002354A1 Improvements in and relating to testing coins |
| 08/05/1981 | EP0032981A1 Domestic emergency calling system with remote release |
| 07/07/1981 | US4277804 System for viewing the area rearwardly of a vehicle |
| 03/31/1981 | CA1098611A1 Alarm system with acoustically coupled transmitters and receiver |
| 01/06/1981 | CA1093126A1 Switch means for radio alarm device |
| 11/04/1980 | US4232308 Wireless alarm system |
| 10/01/1980 | EP0016149A1 Switch means for radio alarm device |
| 09/23/1980 | US4224602 Signalling device |
| 09/03/1980 | EP0014702A1 Electrically isolated illumination control for dental drill |
| 08/26/1980 | US4219837 Alarms between stations with relative motion |
| 08/05/1980 | CA1083242A1 Monitor and alarm apparatus in loop line system |
| 06/24/1980 | US4209769 System for producing warning signals perceivable by an automobile driver in response to remote warning sounds |
| 06/17/1980 | US4208579 Electrically isolated control means for the illuminating source of a dental drill |
| 06/10/1980 | US4207559 Alarm system with acoustically coupled transmitters and receiver |
| 03/20/1980 | WO1980000516A1 Switch means for radio alarm device |
| 03/04/1980 | US4191947 Intrusion alarm system |
| 02/19/1980 | US4189721 Personal alarm system |
| 02/05/1980 | US4187421 Optical relay |
| 08/23/1979 | WO1979000580A1 Electrically isolated illumination control for dental drill |
| 10/17/1978 | US4121160 Switch means for radio alarm device |
| 09/26/1978 | US4117462 Ultrasonic transmitter for burglar alarm system |
| 09/19/1978 | US4115757 Omnidirectional visual vehicular warning system |
| 11/02/1976 | US3990040 Apparatus for transmitting distress signals |
| 07/06/1976 | US3967577 Pneumatic control system |
| 04/06/1976 | US3949300 Emergency radio frequency warning device |
| 02/17/1976 | US3938549 Tattletale annuciator and shut-down control for compressors or like equipment |