Title:
KEYBOARD PUSHBUTTON RETURN SPRING
United States Patent 3478857


Inventors:
Linker, John T.
Application Number:
US3478857DA
Publication Date:
11/18/1969
Filing Date:
07/19/1967
Assignee:
LEAR SIEGLER INC
Primary Class:
Other Classes:
200/302.2, 200/520, 235/145R, 267/153, 341/27
International Classes:
B41J7/26; (IPC1-7): B41J7/26; B41J25/00; F16F/
View Patent Images:
Foreign References:
GB553665A1943-05-31
CH352724A1961-03-15