Decoding
United States Patent 2977434
US Patent References:
/RE23877.html
- - RE23877

Electric switch
- - 1393822

Changeable electric light device
- - 2041589

Record sheet for statistical purposes
- - 2171556

Program selector
- - 2284916


Inventors:
Shanahan, William J.
Vetter, Richard F.
Publication Date:
03/28/1961
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Assignee:
SKIATRON ELECT & TELE
Primary Class:
200/46
Other Classes:
380/227, 235/492, 348/E07.060, 235/441, 348/E07.064, 380/228
International Classes:
H04N7/16
US Patent References:
2478274Circuit connecting device
2483551Data transfer mechanism for tabulators and the like
2517984Perforated record sensing device
2594069Battery voltage selector jumper board and terminal board for industrial truck chargers
2680791Automatic distributor of electric current
2695351Electric circuit components and methods of preparing the same
2734954
2794869Combination electric switch and shearing apparatus
2817824Card switching device