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Patent:GB190918937


Patent:GB 190918937
Title:Improvements in Calculating Machines, especially Designed for use in connection with Typewriting Machines
Date:17.08.1910
Place:
Country:Great Britain
Person:Fairweather, Wallace (P)
Company:
Internal Links:
Keywords:
Link to the patent office:
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 GB190918937


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Aus der Patentschrift GB190918937