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  • 21 Aug, 2019

  • By, Wikipedia

File:Nick Kopp Patent 20566 Closed Vessel With Perforated Cover.png

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Nicholas Kopp's "Closed Vessel with Perforated Cover"

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current18:16, 21 August 2023Thumbnail for version as of 18:16, 21 August 2023410 × 336 (83 KB)TwoScarsUpUploaded a work by Nicholas Kopp from This is an illustration from the seven-year patent granted to Nicholas Kopp of Fostoria, Ohio. The United States Patent Office granted the patent March 10, 1891. with UploadWizard
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