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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US2255102


Patent:US 2255102
Title:Adding and calculating machine
Date:09.09.1941
Place:
Country:USA
Person:Carlström, Bengt
Company:Facit (P) Ab
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US2255102 (espacenet),  US2255102 (uspto)


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Aus der Patentschrift US2255102