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Patent:US1077220


Patent:US 1077220
Title:Calculating and Printing Machine
Date:28.10.1913
Place:
Country:USA
Person:H. R. Cowan
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1077220 (espacenet),  US1077220 (uspto)


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Aus der Patentschrift US1077220