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
Electromagnetic probe for measuring properties of a subsurface formation
Media identification system with fingerprint database balanced according to search loads
Electronic device, communication control method of electronic device, and information terminal device
Resin composition and display device using the same
Plants and seeds of hybrid corn variety CH336383
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Flexible quantization
  Randomly Featured Patents
Cooling tower monitor
Signaling method for CDMA quality based power control
Capacitive touchpad method using MCU GPIO and signal processing
Tool pack assembly
Contaminant separator and isolation loop for a fuel reactant stream for a fuel cell
Antifungal carbinols
Two-stage Muller C-element
Control of current supplied by a transistor to a pixel in an electroluminescent display device
Microwave oven
Refining oil compositions