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Patent:US2052861


Patent:US 2052861
Title:Bookkeeping machine
Date:01.09.1936
Place:Bielefeld
Country:USA
Person:Heinz zur Nieden
Company:Anker (P)-Werke AG
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2052861 (espacenet),  US2052861 (uspto)


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