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Patent:GB172640


Patent:GB 172640
Title:Improvements in and relating to electromotive drives for calculating machines
Date:11.01.1923
Place:
Country:Great Britain
Person:
Company:Optische Anstalt C. P. Goerz (P)
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
 GB172640


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Aus der Patentschrift GB172640