Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 116/80
Name: Signals and indicators > Alarms > Burglar > Portable > Key or keyhole
Description: Devices in which means are provided whereby the key or keyhole is utilized in securing the device to the door, the alarm being actuated by the insertion, the attempt to insert, or the turning of the key in the keyhole.










Patents under this class:

Patent Number Title Of Patent Date Issued
7866195 Door lock indicator Jan. 11, 2011











 
 
  Recently Added Patents
Transferring data by touch between touch-screen devices
Passive millimeter wave differential interference contrast polarimetry
Device for accurately measuring concentration of component in blood and control method of the device
Wireless communication method, wireless communication system, and mode switching method
Data communication apparatus, method of controlling the same, program, and storage medium
Method and apparatus for content-aware resizing of data chunks for replication
Pipe coupling
  Randomly Featured Patents
Waterproof remote control device
Single-level multiplexer
System and method of storing loose copy from a printing press
Pastry crust and pastry crust dough
Small generator
Extruded fire resistant construction and building products
Circuit for analyzing a signal reflected from an object
Installation for conveyance of a boat
Device for securing items to a vehicle
Wide amplitude range detecting circuit