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Patent:US1061819


Patent:US 1061819
Title:Calculator
Date:13.05.1913
Place:
Country:USA
Person:M. L. Cleary
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1061819 (espacenet),  US1061819 (uspto)


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Aus der Patentschrift US1061819