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Patent:GB913554


Patent:GB 913554
Title:Adding and subtracting machine
Date:19.12.1962
Place:
Country:Great Britain
Person:Arvai, Tibor (P)
Company:Mecanographie Japy Soc D
Internal Links:Japy
Keywords:
Link to the patent office:
(without guarantee)
 GB913554


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Aus der Patentschrift GB913554