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Revision as of 23:42, 10 January 2022 by LTA (talk | contribs) (Patent GB-1872-411 [https://books.google.com/books?id=DUlkGeStZIgC&hl=fr&pg=RA30-PP7#v=onepage&q&f=true Source] (Google Books scan titled "English Patents of Inventions, Specifications: 1872, 368 - 418", provided by Deutsches Museum.)
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Summary

Patent GB-1872-411

Source (Google Books scan titled "English Patents of Inventions, Specifications: 1872, 368 - 418", provided by Deutsches Museum.

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current23:42, 10 January 2022Thumbnail for version as of 23:42, 10 January 2022529 × 782 (238 KB)LTA (talk | contribs)Patent GB-1872-411 [https://books.google.com/books?id=DUlkGeStZIgC&hl=fr&pg=RA30-PP7#v=onepage&q&f=true Source] (Google Books scan titled "English Patents of Inventions, Specifications: 1872, 368 - 418", provided by Deutsches Museum.

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