Resources Contact Us Home
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
Interface circuit and interface system
Touch screen tablet
Bluetooth headset
Method and apparatus for web crawling
Image display device and method of changing first EDID with second EDID wherein the second EDID information is compatible with image display device
SMS transport resource control
Electric separator, method for the production and use thereof
  Randomly Featured Patents
Devices containing permanent charge
Method for releasing an electrical parking brake
Tape cartridge storage unit
Systems and methods for providing user profile information in conjunction with an enhanced caller information system
Carriage arm assembly of disk drive
Soybean cultivar 9314589400005
Apparatus and method for pressurising an aircraft cabin structure and measuring the amount of leakage of the aircraft cabin structure
Communication method