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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB190209797


Patent:GB 190209797
Title:Improvements in Calculating Machines
Date:28.04.1903
Place:
Country:Great Britain
Person:Schuster, Ernst (P)
Company:
Internal Links:Berolina
Keywords:
Link to the patent office:
(without guarantee)
 GB190209797


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Aus der Patentschrift GB190209797