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Patent:US1307740


Patent:US 1307740
Title:Tabulating Machine
Date:24.06.1919
Place:Binghamton, NY
Country:USA
Person:Lake, Clair (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1307740 (espacenet),  US1307740 (uspto)


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