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Patent:GB437578


Patent:GB 437578
Title:Improvements in or relating to calculating mechanism
Date:31.10.1935
Place:
Country:Great Britain
Person:Campbell, Charles (P)
Company:British Tabulating (P) Mach Co Ltd
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB437578


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Aus der Patentschrift GB437578