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Patent:GB674952


Patent:GB 674952
Title:Improvements in and relating to calculating apparatus
Date:02.07.1952
Place:
Country:Great Britain
Person:David Thomas Davis
Company:British Tabulating (P) Mach Co Ltd
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB674952


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Aus der Patentschrift GB674952