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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB391869


Patent:GB 391869
Title:Calculating Apparatus
Date:02.10.1930
Place:Detroit, Michigan
Country:Great Britain
Person:
Company:Burroughs (P) Adding Machine Co.
Internal Links:Hopkins, Hubert
Keywords:
Link to the patent office:
(without guarantee)
 GB391869


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Aus der Patentschrift GB391869