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Patent:US1293094


Patent:US 1293094
Title:Adding Machine
Date:04.02.1919
Place:
Country:USA
Person:R. Herbst
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1293094 (espacenet),  US1293094 (uspto)


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Aus der Patentschrift US1293094