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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US3484041


Patent:US 3484041
Title:Arithmetic Unit for Calc Mch of the Ten Button Key Set Type
Date:16.12.1969
Place:
Country:USA
Person:Grip, Erik Konrad (P)
Company:Facit (P)
Internal Links:Facit 1051
Keywords:
Link to the patent office:
(without guarantee)
 US3484041 (espacenet),  US3484041 (uspto)


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Aus der Patentschrift US3484041