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Patent:US1506112


Patent:US 1506112
Title:Calculator
Date:26.08.1924
Place:
Country:USA
Person:M. B. Cutshaw
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1506112 (espacenet),  US1506112 (uspto)


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Aus der Patentschrift US1506112