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Patent:GB468323


Patent:GB 468323
Title:Improvements in and relating to Slide Rules
Date:02.07.1937
Place:
Country:Great Britain
Person:
Company:A W Faber Castell (P)
Internal Links:Rechenschieber
Keywords:
Link to the patent office:
(without guarantee)
 GB468323


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Aus der Patentschrift GB468323