| Patents for G08B 21 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for (34,716) |
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| 01/17/1990 | CN2051371U Urinate siren for baby |
| 01/16/1990 | US4894643 Appliance door alarm apparatus |
| 01/10/1990 | EP0349879A2 Tire abnormality detecting device |
| 01/09/1990 | US4893113 Gas alarm and detoxification heating systems |
| 01/03/1990 | CN2050633U Multifunction moist alarm |
| 01/02/1990 | US4891626 Refrigerator door ajar detection system |
| 01/02/1990 | US4890485 Mechanism which reacts to the presence of oil and/or water |
| 01/02/1990 | CA1264188A1 Method and apparatus for signaling attempted suicide |
| 12/28/1989 | WO1989012880A1 Low level wind shear warning system |
| 12/27/1989 | CN2050197U Automatic alarm device for fuse box |
| 12/27/1989 | CN2050196U Monitoring and protecting unit for children |
| 12/27/1989 | CN2050195U Sensitive safety informing unit |
| 12/26/1989 | US4890094 Wallet incorporating credit card alarm system |
| 12/20/1989 | CN2049527U Quantitative warner for decocting medicinal herbs or boiling soup |
| 12/19/1989 | US4888580 Child protector |
| 12/19/1989 | US4888577 Semi-automatic mechanical transmission control display and fault indicator |
| 12/14/1989 | WO1989012289A1 Methods, systems and apparatus for detecting changes in variables |
| 12/13/1989 | CN2049383U Electric spark alarm device |
| 12/12/1989 | US4887065 Control system for a combined central locking and burglar alarm system for vehicles |
| 12/12/1989 | US4887024 Person detecting device |
| 12/06/1989 | EP0344253A1 Polyphase circuit fuse condition indicating device |
| 12/06/1989 | CN2049004U Slecping bag with automatic alarm for baby |
| 12/05/1989 | CA1263743A1 Circuit for eyesight protection in a television set |
| 11/29/1989 | EP0344138A2 Secure personnel monitoring system |
| 11/29/1989 | CN2048607U Acoustopptic electric leakage warner |
| 11/29/1989 | CN2048606U Magnetic controlled choked flow electronic warner |
| 11/29/1989 | CN2048354U Warning first aid medical box |
| 11/28/1989 | US4884067 Motion and position sensing alarm |
| 11/28/1989 | US4884064 Intruder detection and control apparatus |
| 11/28/1989 | US4884060 Multi-state selection switch for a personal emergency response system |
| 11/28/1989 | US4884056 System for displaying trouble in an electronic control system of a motor vehicle |
| 11/22/1989 | CN2048219U Multi-purpose electric warning device |
| 11/22/1989 | CN2048218U Warning device for old people health |
| 11/21/1989 | US4882570 Vehicle and distress indicator therefor |
| 11/21/1989 | US4882568 Toilet tissue alert system |
| 11/21/1989 | US4881456 Onboard air discharge system |
| 11/16/1989 | DE3815611A1 Distress alarm |
| 11/15/1989 | EP0341906A2 A security system |
| 11/15/1989 | CN2047851U Alarm for a misoperation of opening the door to electric power network |
| 11/15/1989 | CN2047814U Burglar alarm with multichannels and multi-functions |
| 11/15/1989 | CN2047813U Anti-shock alarm of poisonous and combustible gas |
| 11/15/1989 | CN2047647U Theft and hijack of vehicle and drink sensitive detector |
| 11/15/1989 | CN1037243A Arrangement for fault indication |
| 11/15/1989 | CN1037226A Multi-channel flashy warning units |
| 11/14/1989 | US4881063 Battery removal indicator |
| 11/09/1989 | DE3814158A1 Signal transmitter for occurring body fluid |
| 11/08/1989 | CN2047425U Multi-functional electronic automatic annunciator |
| 11/08/1989 | CN2047424U Multipurpose miniature level annunciator |
| 11/08/1989 | CN2047423U Alcoholic drink sensitive warning device |
| 11/07/1989 | US4879545 Safety indicator device for low water crossing |
| 11/07/1989 | US4879542 Alarm systems |
| 11/02/1989 | DE3913180A1 Stoerungsanzeiger fuer elektrische nutzleitungen Stoerungsanzeiger for Electric Utility line |
| 11/01/1989 | CN2047051U Siren for super-consistency of inflammable and explodable toxic gas |
| 10/31/1989 | US4878043 Device for indicating hydroculture-related values |
| 10/24/1989 | US4876674 Sonic collar sheep protector |
| 10/18/1989 | CN2046250U Multifunction fuel gas alarm |
| 10/18/1989 | CN2046249U Domestic automatic gas alarm |
| 10/18/1989 | CN2046248U Automobile multifunction alarm |
| 10/17/1989 | US4875030 Sleep-preventing alarm device |
| 10/11/1989 | CN2045870U Miniature sleeping cold-catching alarm |
| 10/11/1989 | CN2045713U Anti-stealing and anti-kidnaping cipher switch warner for vehicle |
| 10/11/1989 | CN1036184A Flight path responsive aircraft wind shear alerting and warning system |
| 10/10/1989 | US4873401 Electromagnetic damped inertia sensor |
| 10/04/1989 | CN2045509U Remote-controlled temp. warner for rotation machines |
| 10/04/1989 | CN2045479U Apparatus for liquid level electronic display and autocontrol warner |
| 10/04/1989 | CN2045299U Radio medical warner for infusion |
| 10/03/1989 | US4872053 Device to control the presence of information of images in video signals |
| 10/03/1989 | US4871997 Proximity sensor apparatus |
| 09/27/1989 | EP0333771A1 Personal alarm system. |
| 09/26/1989 | US4870700 Personal safety radio device |
| 09/26/1989 | CA1261940A1 Water backup alarm system |
| 09/26/1989 | CA1261491A1 Entrance telephone system utilizing the public subscriber telephone network |
| 09/26/1989 | CA1260546A1 Abduction-preventing collar |
| 09/21/1989 | WO1989008904A1 Method and device for monitoring the steering performance of a vehicle operator |
| 09/20/1989 | EP0332769A1 Motor vehicle maintenance interval monitor |
| 09/20/1989 | CN2044487U Coronary heart disease first-aid case able to store information |
| 09/13/1989 | CN2044365U Liquid flow warner |
| 09/08/1989 | WO1989007965A1 Snow ski locating device |
| 09/06/1989 | CN2044087U Gas alarm controller |
| 09/06/1989 | CN2044086U Poisonous gas auto-alarming and removing device |
| 08/29/1989 | US4862146 Detection apparatus |
| 08/24/1989 | WO1989007768A1 Radio frequency detector |
| 08/16/1989 | CN2042985U Distant inclination alarm |
| 08/16/1989 | CN2042984U Infra-red monitoring alarm for reading visual distance |
| 08/15/1989 | US4857923 Ground proximity warning system for an excessive descent rate over undulating terrain |
| 08/15/1989 | US4857896 Polyphase circuit fuse condition indicating device |
| 08/15/1989 | US4857894 Liquid level measurement system for analog and digital readout |
| 08/02/1989 | CN2042223U Gas alarm |
| 08/02/1989 | CN2042222U Keep-fit alarm for old people |
| 08/02/1989 | CN1034427A Radio telementering and early-warning system of mud-rock flow |
| 08/01/1989 | US4853692 Infant security system |
| 08/01/1989 | US4853691 Method of and apparatus for the acoustic signalling of cases of drowning in swimming pools |
| 07/27/1989 | WO1989006846A1 Flight path responsive aircraft wind shear alerting and warning system |
| 07/25/1989 | CA1257940A1 Automatic personnel monitoring system |
| 07/25/1989 | CA1257921A1 Environmental indicator device and method |
| 07/25/1989 | CA1257905A1 Vital safety monitoring circuit |
| 07/25/1989 | CA1257902A1 Electrical power line parameter measurement apparatus and systems, including compact line-mounted modules |
| 07/24/1989 | EP0305450A4 A dive parameter indicating assembly. |
| 07/19/1989 | EP0324217A1 Safety system and method |
| 07/18/1989 | US4849756 Ground proximity warning system terrain classification system |