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
Techniques for determining optimized local repair paths
Alkaline battery
Method and apparatus for a battery docking connector having reserve power for hot battery swap
Message value indicator
Method for producing cathode active material for a lithium secondary battery
Estimating optical characteristics of a camera component using sharpness sweep data
Jacket liner
  Randomly Featured Patents
Illuminatable sign
Ozone water purification system
Wrap used on the joint of an arm and axle beam for a pneumatic suspension system
Hair styling gels
Arrangement of plural micro-cooling devices with electronic components
Mail inserting and collating apparatus
Self-sealed spout
Climatic condition reproducer cabinet
Circuit breaker compartment shield assembly
Translating of geometric models into block diagram models