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Die große Enzyklopädie des mechanischen Rechnens

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Patent:CH99792


Patent:CH 99792
Title:Rechenmaschine.
Date:16.06.1923
Place:USA
Country:Switzerland
Person:
Company:Monroe (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 CH99792


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Aus der Patentschrift CH99792