Title:
Keyboard apparatus
United States Patent 3017463
US Patent References:
/1283320.html
- - 1283320

Photoelectric transmitting typewriter apparatus
- - 2408754


Inventors:
Dinsmore, Stanley H.
Lee, Robert M.
Publication Date:
01/16/1962
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Assignee:
BENDIX CORP
Primary Class:
178/79
Other Classes:
250/229, 235/145R, 341/27, 341/31
International Classes:
H03K17/969; H03K17/94