Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 116/90
Name: Signals and indicators > Alarms > Burglar > Closure operated > Door and window > Gear and friction wheel
Description: Signals and alarms actuated by gear or friction wheels attached to the moving door or window and in contact with the floor or window frame.










Patents under this class:

Patent Number Title Of Patent Date Issued
4106427 Alarm system Aug. 15, 1978











 
 
  Recently Added Patents
Data consumption framework for semantic objects
Monitoring device for monitoring a display device
Myoglobin blooming agents, films, packages and methods for packaging
Method and apparatus for eliminating a motor vehicle tip-over risk
Motion control system and X-ray measurement apparatus
Proximity sensor arrangement in a mobile device
Methods and systems for representing missed approach information in perspective view on a cockpit display
  Randomly Featured Patents
Automatic ball throwing machine
Circuit for modifying the IF response of a television receiver
Coriolis flow sensor with optically reflective motion sensor
Method of playing a better game using special payoff tables
Modular measurement device
Treatment of catalyst particles
High temperature, stable SiC device interconnects and packages having low thermal resistance
Tube coupling unit
Amplifier suitable for low supply voltage operation
5-Hydroxy-PGI.sub.1 pyrrolinylamides