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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB383250


Patent:GB 383250
Title:Improvements in and relating to Calculating Machines
Date:24.08.1932
Place:
Country:Great Britain
Person:
Company:Brunsviga (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB383250


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Aus der Patentschrift GB383250