Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 116/151
Name: Signals and indicators > Bells > Pneumatic actuation
Description: Bells in which pneumatic means are used for moving the bell or controlling its motion.










Patents under this class:

Patent Number Title Of Patent Date Issued
7640883 Fluid-operated communication system Jan. 5, 2010
4275681 System gas alarm Jun. 30, 1981
4269878 Stand structure May. 26, 1981











 
 
  Recently Added Patents
Voltage detecting device for LED driver
Prompt gap varying optical filter, analytical instrument, optical device, and characteristic measurement method
Mask and method for forming the mask
Lipoprotein analysis by differential charged-particle mobility
Semiconductor memory device
Use of cocoa extract
Address generation unit for accessing a multi-dimensional data structure in a desired pattern
  Randomly Featured Patents
Automatic responsivity compensator in an IR imaging system
Channel-cut monochromator
Puzzle
Vehicle headliner with impact protection
Application level security
Method for combining deterministic and non-deterministic user interaction data input models
Method and apparatus for adjusting the alignment of a sighting device and a pivotable member
Conditional highlighting of given cells in a dynamic HTML table
Parylene variants and methods of synthesis and use
Cracking catalyst