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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB358675


Patent:GB 358675
Title:Improvements in writing adding machines
Date:15.10.1931
Place:
Country:Great Britain
Person:
Company:Elliott Fisher (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB358675


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Aus der Patentschrift GB358675