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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB190906657


Patent:GB 190906657
Title:An Improved Calculating Apparatus
Date:31.12.1909
Place:Innsbruck
Country:Great Britain
Person:Salcher, Alois (P), Werle, Nicolaus (P)
Company:
Internal Links:Adsumudi
Keywords:
Link to the patent office:
(without guarantee)
 GB190906657


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Aus der Patentschrift GB190906657

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