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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB760883


Patent:GB 760883
Title:Improvements in calculating machines
Date:07.11.1956
Place:
Country:Great Britain
Person:
Company:Atvidaberg Facit (P) Ab
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB760883


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Aus der Patentschrift GB760883