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File:Inglis bridge patent.png

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Description
English: Inglis footbridge from its 1916 patent
Date
Source Military Bridge and the like. US-Patent US1181013A vom 25. April 1916
Author Charles Edward Inglis
Permission
(Reusing this file)
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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25 April 1916Gregorian

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current14:48, 16 February 2013Thumbnail for version as of 14:48, 16 February 20132,272 × 1,680 (294 KB)Dumelow{{Information |Description=Inglis footbridge from its 1916 patent |Source=http://www.google.pt/patents?id=RUhTAAAAEBAJ |Date=25 April 1916 |Author=Charles Edward Inglis |Permission={{Template:PD-US-patent-no notice}} |other_versions= }}

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