Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 178/106
Name: Telegraphy > Keys > Shifting contact point
Description: Telegraph keys having one or more of the contacts movable or revoluble, so that the points of contact may be renewed when they are roughened or burned by heavy currents or use.










Patents under this class:

Patent Number Title Of Patent Date Issued











 
 
  Recently Added Patents
Categorizing bit errors of solid-state, non-volatile memory
Systems and methods for online search recirculation and query categorization
System and method for infrared dongle
Organic EL display device and method for manufacturing the same
Method of making an array of nucleic acid colonies
Food-grade flour from dry fractionated corn germ and collet composition and method for producing same
SRAM cells using shared gate electrode configuration
  Randomly Featured Patents
Methods and apparatus for efficient and accurate coarse timing synchronization in burst demodulators
Method for producing cycloolefin polymers
Pulverized coal burner and method of using same
Container with expandable side walls
Housing for a ventilation unit
Method and apparatus for software controlled timing of embedded memory
Bicycle storage device
Shrub rose plant named `Kortemma`
Valve
Beverage dispenser