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Patent:US1166978


Patent:US 1166978
Title:Signal-printing way for calculators
Date:04.01.1916
Place:Newark, NJ und New York
Country:USA
Person:Warren Fuhrmann
Company:Addometer (P) Corp.
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Keywords:
Link to the patent office:
(without guarantee)
 US1166978 (espacenet),  US1166978 (uspto)


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