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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB191224275


Patent:GB 191224275
Title:Improvements in and relating to Calculating Machines
Date:01.05.1913
Place:
Country:Great Britain
Person:Trinks, Franz (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB191224275


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Aus der Patentschrift GB191224275