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Patent:US1122052


Patent:US 1122052
Title:Adding Machine
Date:22.12.1914
Place:
Country:USA
Person:L. W. Yaggy
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1122052 (espacenet),  US1122052 (uspto)


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Aus der Patentschrift US1122052