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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US1949918


Patent:US 1949918
Title:Calculating Machine
Date:06.03.1934
Place:
Country:USA
Person:Muller, Robert (P)
Company:Burroughs (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US1949918 (espacenet),  US1949918 (uspto)


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Aus der Patentschrift US1949918