Program device
United States Patent 2800539
US Patent References:
Selectively controlled recording apparatus
- - 2540029


Inventors:
Edminster, Robert E.
Shaver Jr., Jay C.
Publication Date:
07/23/1957
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Assignee:
IBM
Primary Class:
200/46
Other Classes:
234/20, 400/80, 235/61PM, 178/17R
International Classes:
B41J3/50; B41J3/44