3767022 is referenced by 23 patents and cites 8 patents.

A stem boot for providing breakaway feel for individual keys of a manually actuated keyboard.

Title
Return spring key stem boot
Application Number
05/029,744
Publication Number
3767022
Application Date
April 24, 1970
Publication Date
October 23, 1973
Inventor
Olson Cecil G
Assignee
The Singer Company
IPC
B41j 05/08
H01H 13/50
B41J 05/26
B41J 05/00
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