Title:
Paper end indicator for typewriters
United States Patent 3091321
Inventors:
Ashworth, William J.
Publication Date:
05/28/1963
Export Citation:
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Assignee:
ARTNELL COMPANY
Primary Class:
400/708.1
Other Classes:
315/178, 400/711
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US Patent References:
2913096Margin signal for typewriters
2474951Typewriter sheet end indicator
1132008N/A
1114633N/A
1071780N/A