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Patent:GB190123886


Patent:GB 190123886
Title:An Improvement in the Slid-rule Consisting in the Provision of Elastic Supports or Runners which Allow the Slide to Work Freely under all
Date:13.11.1902
Place:
Country:Great Britain
Person:Dunlop, Henry Cleland (P)
Company:
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Link to the patent office:
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 GB190123886


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Aus der Patentschrift GB190123886