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Die große Enzyklopädie des mechanischen Rechnens

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Patent:CH31465


Patent:CH 31465
Title:Machine à calculer
Date:30.04.1905
Place:Frankreich
Country:Switzerland
Person:Mugnier, Francois (P)
Company:
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Link to the patent office:
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 CH31465


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Aus der Patentschrift CH31465