File:US1541993-0.png

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Description Third-wheel attachment for motor cycles - Patent Drawing
Date
Source https://www.google.co.in/patents/US1541993
Author Carl A. Neracher
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Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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Date/TimeThumbnailDimensionsUserComment
current19:23, 15 February 2015Thumbnail for version as of 19:23, 15 February 20152,216 × 1,464 (94 KB)MichaelFrey (talk | contribs)crop and rotate
19:16, 15 February 2015Thumbnail for version as of 19:16, 15 February 20152,320 × 3,408 (77 KB)MichaelFrey (talk | contribs){{Information |Description=Third-wheel attachment for motor cycles - Patent Drawing |Source=https://www.google.co.in/patents/US1541993 |Date=13. Juni 1921 |Author=Carl A. Neracher |Permission={{PD-US-patent-no notice}} |other_versions= }} [[Category:N...

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