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File:'74 GM Rotary engine.jpg

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Description
English: 1974 GM Rotary engine
Date
Source GM Society of Engineers (SAE) Convention photo
Author General Motors

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This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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The original description page was here. All following user names refer to en.wikipedia.
  • 2010-10-08 05:28 Vegavairbob 930×578× (271896 bytes) {{Information |Description = 1974 GM Rotary engine |Source = GM Society of Engineers (SAE) Convention photo |Date = July 1972 |Author = General Motors |other_versions = }} {{PD-pre1978}}

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Date/TimeThumbnailDimensionsUserComment
current20:28, 11 November 2010Thumbnail for version as of 20:28, 11 November 2010930 × 578 (266 KB)Addihockey10 (talk | contribs){{Information |Description={{en|1974 GM Rotary engine}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]<br/> (Original text : ''GM Society of Engineers (SAE) Convention photo'') |Date=January 1972<br/> ({{Date|2010|10|08}} (original upload

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