Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 116/168
Name: Signals and indicators > Bells > Spiral-spring type
Description: Devices in which a spiral metallic spring is used as a sounding element, the type being frequently used in clocks.










Patents under this class:

Patent Number Title Of Patent Date Issued
6087945 Pump failure alarm system for hydraulic working machine Jul. 11, 2000
5631632 Pressure monitoring system May. 20, 1997
4187635 Method and apparatus for sound production Feb. 12, 1980











 
 
  Recently Added Patents
Measurement system service for a vehicle instrument panel
Antenna support device
Traveling vehicle system and self-diagnosis method for the traveling vehicle system
Xylitol-based anti-mucosal compositions and related methods and compositions
Method for treating rheumatoid arthritis by administering an anti-IL-6 antibody and methotrexate
Methods of isolating bipotent hepatic progenitor cells
Identification of biomarkers in biological samples and methods of using same
  Randomly Featured Patents
Image processing apparatus and image processing system with remote login
Methodology for verifying multi-cycle and clock-domain-crossing logic using random flip-flop delays
Multi-layer article
Method and apparatus for generating minimal node data and dynamic assertions for a simulation
Magnetic shield for video monitor yokes
Motor vehicle circuitry including a pre-driver control
Working asset management system and method
Over-the-air delivery of metering certificates and data
Liquid crystal display device and electronic apparatus
Substituted 1H-benzimidazole-4-carboxamides are potent PARP inhibitors