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Patent:US2277250


Patent:US 2277250
Title:Bookkeeping machine
Date:24.03.1942
Place:Stockholm und New York
Country:USA
Person:Ernst Vilhelm Nyberg
Company:Ekonomiregister
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2277250 (espacenet),  US2277250 (uspto)


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