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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB688639


Patent:GB 688639
Title:Improvements in logarithmic calculators
Date:11.03.1953
Place:
Country:Great Britain
Person:Mario Abeille, Vincenzo Aquilecchia
Company:Microcalcolatore 2A
Internal Links:
Keywords:Rechenscheibe
Link to the patent office:
(without guarantee)
 GB688639


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Aus der Patentschrift GB688639