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Die große Enzyklopädie des mechanischen Rechnens

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Patent:US861541


Patent:US 861541
Title:Calculating Stand
Date:30.07.1907
Place:
Country:USA
Person:F. Rieck
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 US861541 (espacenet),  US861541 (uspto)


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Aus der Patentschrift US861541