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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB1090761


Patent:GB 1090761
Title:Calculator
Date:15.11.1967
Place:
Country:Great Britain
Person:
Company:Friden (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB1090761


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Aus der Patentschrift GB1090761