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Patent:US1171535


Patent:US 1171535
Title:Mechanical Counter
Date:15.02.1916
Place:Detroit USA
Country:USA
Person:Edd Oliver
Company:
Internal Links:Zähler, Scheibenaddierer
Keywords:
Link to the patent office:
(without guarantee)
 US1171535 (espacenet),  US1171535 (uspto)


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