Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Greene; Herbert R.
Address:
Providence, RI
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
3959611 Pushbutton keyboard system having plural level wire-like contact May 25, 1976
A keyboard system has a plurality of spaced sets of conductive members, each set including two outer U-shaped support members and a central U-shaped contact member disposed between the support members. The central member is coined to reduce the thickness of its outer portions and to










 
 
  Recently Added Patents
Probe card holding apparatus with probe card engagement structure
Switching power supply apparatus with overcurrent limiting and prolonged holding time
Spark plug
Vehicles with electric motor
Business flow processing method and apparatus
Processing autocomplete suggestions
Methods for forming patterned structures
  Randomly Featured Patents
Vacuum cleaner
Device for selectively controlling the operation of inking or damping unit rollers of a printing press
Shipping protector
Bonding pad structure for back illuminated optoelectronic device and fabricating method thereof
Pulse train generating circuit for control of an ozone generating means
Method and apparatus for light internal reforming in a solid oxide fuel cell system
Semiconductor power switch system
Blasting apparatus
Apparatus for and methods of making bimodal electrophotographic copies
Ejection device for a cartridge