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Patent:GB190726170


Patent:GB 190726170
Title:An Improved Selective Manual Operating Mechanism for Calculating Machines
Date:21.05.1908
Place:
Country:Great Britain
Person:Bürk, Richard
Company:
Internal Links:Kollektor
Keywords:
Link to the patent office:
(without guarantee)
 GB190726170


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Aus der Patentschrift GB190726170