| 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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| 01/29/1992 | CN2094251U Self-defence anti-theft suitcase with automatic converting function |
| 01/21/1992 | US5083114 Ground fault indicating device |
| 01/21/1992 | US5083111 Jamming apparatus for electronic article surveillance systems |
| 01/15/1992 | CN2093422U Shock alarm device with electronic door bell |
| 01/14/1992 | US5081448 Differential pressure indicator with temperature compensation |
| 01/14/1992 | US5081447 Keep off your back alarm |
| 01/14/1992 | US5081422 Methods for roof, wall or floor leak detection |
| 01/09/1992 | DE4121520A1 Preheating circuitry for cold-start of diesel engine - has sensor detecting occupancy of driver's seat in motor vehicle |
| 01/08/1992 | CN2092314U Appliance for guarding against myopia |
| 01/07/1992 | US5079542 Abnormal temperature detector for electronic apparatus |
| 01/02/1992 | EP0463860A2 Faulted circuit detector having isolated indicator |
| 01/02/1992 | EP0463727A1 Pin-clutch mechanism for theft deterrent device |
| 01/02/1992 | EP0463428A2 Door ajar alarm for refrigeration unit |
| 01/02/1992 | DE4020025A1 Electronic appts. with function fault display - has signal line providing potential characterising fault condition of electronic appts. |
| 01/01/1992 | CN2092127U Door alarming transducer |
| 01/01/1992 | CN2092126U Pen container-like domestic earthquake alarm |
| 12/31/1991 | CA1293786C Retainer for documents |
| 12/27/1991 | EP0462102A1 A method for detecting external influence on an optical cable. |
| 12/26/1991 | WO1992000580A1 Faulted circuit detector having isolated indicator |
| 12/26/1991 | WO1991020064A1 Portable system and method for continuously monitoring protective clothing |
| 12/26/1991 | CA2041861A1 Faulted circuit detector having isolated indicator |
| 12/25/1991 | CN2091477U Isolated contact type pressure alarm |
| 12/25/1991 | CN2091159U Electrode type intravenous infusion alarm |
| 12/25/1991 | CN2091147U Portable automatic alarm first-aid unit for heart diseases |
| 12/25/1991 | CN1057328A Self-diagnostic system for refrigerator |
| 12/24/1991 | US5075671 Personal alarm system |
| 12/24/1991 | US5075670 Personnel monitoring tag with tamper detection and secure reset |
| 12/11/1991 | EP0460066A1 Method and apparatus for detecting airborne allergen particulates. |
| 12/11/1991 | CN2090556U Alarm device for quilt-uncovering child in sleep |
| 12/11/1991 | CN2090555U Reminder for humpbacked posture |
| 12/11/1991 | CN2090434U Fuel supply monitor for fuel system of diesel engine |
| 12/04/1991 | EP0458796A1 Process for releasing restraining means. |
| 12/03/1991 | US5070319 Door ajar alarm for refrigeration unit |
| 11/26/1991 | US5067441 Electronic assembly for restricting animals to defined areas |
| 11/19/1991 | US5066943 Patent monitoring system |
| 11/19/1991 | CA1292295C Alarm device for wallets and the like |
| 11/14/1991 | WO1991017634A1 Transmitter/receiver system for locating misplaced objects |
| 11/13/1991 | EP0456126A1 Method and apparatus for the optical control of the quality of needles of a knitting machine |
| 11/13/1991 | CN2088713U Water boiling alarming device |
| 11/13/1991 | CN1056157A Automatic control and alarm safety device for fuel gas |
| 11/12/1991 | US5065140 Early warning reactive gas detection system |
| 11/12/1991 | US5065139 Portable level sensing apparatus |
| 11/06/1991 | CN2088272U Low-pressure alarm with sound |
| 11/05/1991 | US5063370 Hypodermic syringe needle detection alarm |
| 10/31/1991 | WO1991016585A1 Alarm system for temperature supervision |
| 10/23/1991 | CN2087368U High voltage space interlock alarm for guarding against mistaking enter |
| 10/23/1991 | CN2087065U Sober device |
| 10/22/1991 | US5059954 Liquid level sensing system |
| 10/22/1991 | CA1291242C Voice alarm output device for outboard motor |
| 10/22/1991 | CA1291241C Vocal alarm method for outboard engine |
| 10/22/1991 | CA1291240C Audio alarm outputting device for outboard engine |
| 10/16/1991 | EP0452194A1 Method and device for monitoring persons using a motion sensing detector |
| 10/16/1991 | CN2086923U Syxi-4 model audible acciden signaller |
| 10/16/1991 | CN2086598U Device for preventing myopia |
| 10/15/1991 | US5057965 Work station monitor |
| 10/15/1991 | US5057834 Method and device for monitoring the steering performance of vehicle operator |
| 10/15/1991 | US5057822 Medical gas alarm system |
| 10/15/1991 | US5057819 Alarmed safety cushion |
| 10/11/1991 | WO1991015837A1 Wind shear detector with slow shear bias |
| 10/11/1991 | CA2060517A1 Wind shear detector with slow shear bias |
| 10/09/1991 | EP0451117A2 An improved electronic safety device for trucks |
| 10/08/1991 | US5055828 Parasitic-ground current indicator for electrical system |
| 10/06/1991 | CA2039282A1 Electronic safety device for trucks |
| 10/03/1991 | WO1991015005A1 Sleep posture monitor and alarm system |
| 10/01/1991 | US5053768 Golf cart control system |
| 10/01/1991 | US5053751 Water alarm to signal flooding in basements |
| 10/01/1991 | US5053749 Retainer for documents with alarm |
| 09/29/1991 | WO1991014952A1 Locating system |
| 09/25/1991 | CN2085232U Alarm device at pissing and defecating for infant |
| 09/24/1991 | US5051741 Locating system |
| 09/24/1991 | US5051731 Blown circuit breaker indicator with light emitting diode |
| 09/24/1991 | US5051724 Key security device |
| 09/19/1991 | WO1991014243A1 Personnel monitoring man-down alarm and location system |
| 09/19/1991 | WO1991014242A1 Monitoring and locating system |
| 09/18/1991 | CN2085080U Warning device preventing quilt from being uncovered on sleeping |
| 09/18/1991 | CN2084810U Multifunction baby nurser |
| 09/17/1991 | US5049859 Water entry alarm system |
| 09/11/1991 | EP0446061A2 Abnormal temperature detector for electronic apparatus |
| 09/11/1991 | EP0445346A1 Battery missing indicator |
| 09/10/1991 | US5047750 Non-intrusive infant security system |
| 09/04/1991 | CN2084220U Automatic cut-off alarm for leakage of gas |
| 09/03/1991 | US5045839 Personnel monitoring man-down alarm and location system |
| 09/03/1991 | US5045700 Headgear-mounted indicator for ionizing radiation |
| 08/29/1991 | WO1991013286A1 Detection system for safety equipment |
| 08/29/1991 | CA2076755A1 Detection system for safety equipment |
| 08/28/1991 | EP0443826A2 Safety alertness monitoring system and geographical game usable therewith |
| 08/28/1991 | CN2083772U Electronci posture correcting read/write device |
| 08/28/1991 | CN2083751U Power dust automatic testing alarm instrument |
| 08/27/1991 | US5043736 Cellular position locating system |
| 08/27/1991 | US5043705 Method and system for detecting a motionless body in a pool |
| 08/27/1991 | US5043704 Detecting |
| 08/27/1991 | CA1288162C Semi-automatic mechanical transmission control display and fault indicator |
| 08/22/1991 | DE4021828A1 Signal generating detector for border-line states - senses movement of cracks etc. in buildings and provides alert signal when any movement occurs |
| 08/21/1991 | EP0442853A2 Self-contained apparatus for emergency lighting incorporating alarm systems for fire, gas and the like |
| 08/21/1991 | CN2083310U Single-loop energy-saving flash alarm |
| 08/21/1991 | CN2083056U Automatic alarm extinguisher |
| 08/20/1991 | US5041816 Freezer alarm system with two sensor models |
| 08/20/1991 | US5041761 Magnetic automotive lamp current sensor |
| 08/20/1991 | US5040409 Sprinkler alarm |
| 08/16/1991 | CA2010263A1 Method and apparatus for inspecting quality of manufactured articles |