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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB336260


Patent:GB 336260
Title:Calculating mechanism
Date:10.10.1930
Place:
Country:Great Britain
Person:
Company:Int Communications Lab Inc
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB336260


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Aus der Patentschrift GB336260