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Die große Enzyklopädie des mechanischen Rechnens

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Patent:CH43937


Patent:CH 43937
Title:Machine à calculer
Date:01.07.1909
Place:Schweiz
Country:Switzerland
Person:Bollinger, Alexandre (P), Landry, Alcide (P), Landry, Eugene (P)
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 CH43937


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Aus der Patentschrift CH43937