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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB190112590


Patent:GB 190112590
Title:Improvements in Calculating Machines
Date:07.09.1901
Place:
Country:Great Britain
Person:Trinks, Franz (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB190112590


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Aus der Patentschrift GB190112590