Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 116/153
Name: Signals and indicators > Bells > Gong type > Door knob contained
Description: Devices in which the bell is placed within a hollow doorknob or itself forms the knob.










Patents under this class:

Patent Number Title Of Patent Date Issued
7623024 Adjustable door chime with interchangeable parts Nov. 24, 2009
6028504 Removable door chime Feb. 22, 2000
5914650 Removable door chime Jun. 22, 1999
4800833 Tubular door lock with a bell Jan. 31, 1989
4577584 Bell lock (II) Mar. 25, 1986











 
 
  Recently Added Patents
Method and system for reduction of decoding complexity in a communication system
Method of predicting a motion vector for a current block in a current picture
Zoom lens
Portable electric circular saw
Display system with mounting assemblies and associated methods
Ice tray for refrigerator
Data processing circuit with arbitration between a plurality of queues
  Randomly Featured Patents
Device for setting the attitude and the measuring height of the body of a vehicle to be checked on a surface plate, elevator, stays or other means without subjecting it to any warping stress
Process for depositing pyrolytic carbon coatings
Brush holder assembly having snap-in replaceable commutator brush holder cartridges for electric machines
Forming shoes for the twin-wire former of a paper making machine
Differential electrical connector assembly
Foldable blank in use with a bag material for securing and retaining articles of evidence in tamper-evident fashion and including side configured evidence re-entry locations with additional ta
Mounting flange, pump having mounting flange and mold for mounting flange
Shot glass
Self-adhesive stamps
Wireless webcam