Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 178/109
Name: Telegraphy > Keys > Spring pivot
Description: Telegraph keys made of spring metal or connected to their supports by leaf springs functioning as pivots.










Patents under this class:

Patent Number Title Of Patent Date Issued
5773769 Twin lever key with horizontal finger pads for code transmission Jun. 30, 1998











 
 
  Recently Added Patents
Multi-mode 3-dimensional image display apparatus
Mobile device mode control based on dual mapping of availability (presence) information
Co-map communication operator
Vehicle control apparatus
Tire tread
High-speed comparator with asymmetric frequency response
Image forming apparatus and method
  Randomly Featured Patents
Air conditioning device for a printer
Circuit board and electrical connection box having the same
Birefringent spectral filter with wide field of view and associated communications method and apparatus
1-methoxypyrimidinyl-N-nitrophenyl-1H-1,2,4-triazole-3-sulphonamides and their use as herbicides
Functional reclining multi-use exercise apparatus
Fabric winding device for weaving looms
Method and apparatus for communicating between a plurality of subcomponents
Sacrificial energy absorbing structure
Method of molding elastic doll heads and mold therefor
Roller device and electronics using the roller device