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Patent:US2052444


Patent:US 2052444
Title:Bookkeeping machine
Date:25.08.1936
Place:Essen und Dayton
Country:USA
Person:Breitling, Ernst (P)
Company:NCR (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2052444 (espacenet),  US2052444 (uspto)


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