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File size: 750 KB
MIME type: application/pdf

The file "1st_bcd_patent.pdf" has 2 identical duplications.

  1. 1st bcd patent.pdf . . Danilopau (talk | contribs) . . 17:13, 2 December 2019
  2. PATENT1 US4,949,142 1984.pdf . . Danilopau (talk | contribs) . . 16:46, 19 May 2020
  3. US4949142 18 dec 1984.pdf . . Danilopau (talk | contribs) . . 16:59, 2 December 2019