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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB767691


Patent:GB 767691
Title:Improvements in or relating to calculating checking apparatus
Date:06.02.1957
Place:
Country:Great Britain
Person:Woods-Hill, William (P)
Company:British Tabulating (P) Mach Co Ltd
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB767691


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Aus der Patentschrift GB767691