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Die große Enzyklopädie des mechanischen Rechnens

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Patent:FR479863


Patent:FR 479863
Title:Perfectionnements aux machines à calculer
Date:29.07.1915
Place:
Country:France
Person:
Company:Soc. Chateau Freres (P) et Cie
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 FR479863


Erteilt: 21. 2. 1916