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
Wireless subscriber managing storage of HARQ packets
Technology for managing traffic via dual homed connections in communication networks
Navigating applications using side-mounted touchpad
Automated measurement of concentration and/or amount in a biological sample
Transmission apparatus, receiving apparatus, method, and storage medium
Crystalline form of (R)-7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide hydrochloride monohydrate
Method and system for providing status of a machine
  Randomly Featured Patents
Punching machine for making different products at the same step
Olefin thermoplastic elastomer, process for producing the same and use thereof
Lock for securing wear parts to earth-working equipment
Electron transport material and organic electroluminescent device using the same
Fluorescent ink for automatic identification
Sight apparatus for guns and archery bows
Automatically managing the state of replicated data of a computing environment, and methods therefor
Method and system for generating a user's telecommunications bill
Advanced electrodeionization for fluid recycling
Carrier handle for mounting on carton packings having a folded top closure