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Die große Enzyklopädie des mechanischen Rechnens

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Patent:FR569985


Patent:FR 569985
Title:Perfectionnements aux appareils à calculer
Date:12.01.1924
Place:GB
Country:France
Person:
Company:Carbic (P) Ltd.
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 FR569985


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