Delwedd:Leonardo da Vinci helicopter and lifting wing.jpg

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Leonardo_da_Vinci_helicopter_and_lifting_wing.jpg ‎((364 × 504 picsel, maint y ffeil: 62 KB, ffurf MIME: image/jpeg))

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Leonardo Da Vinci. Helicopter (top) and experiment on lifting power of wing (bottom). British Museum, London.

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This is a faithful photographic reproduction of a two-dimensional, public domain work of art. The work of art itself is in the public domain for the following reason:
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The official position taken by the Wikimedia Foundation is that "faithful reproductions of two-dimensional public domain works of art are public domain".
This photographic reproduction is therefore also considered to be in the public domain in the United States. In other jurisdictions, re-use of this content may be restricted; see Reuse of PD-Art photographs for details.
date/time username edit summary
07:49, 08 july 2009 en:User:BrettRob
07:48, 08 july 2009 en:User:BrettRob (<a href="/wiki/Leonardo_Da_Vinci" title="Leonardo Da Vinci">Leonardo Da Vinci</a>. Helicopter (top) and experiment on lifting power of wing (bottom). British Museum, London. {{PD-Art|PD-old-100}})

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cyfredol12:24, 1 Ebrill 2006Bawdlun y fersiwn am 12:24, 1 Ebrill 2006364 × 504 (62 KB)MaksimLa bildo estas kopiita de wikipedia:en. La originala priskribo estas: == Summary == Leonardo Da Vinci. Helicopter (top) and experiment on lifting power of wing (bottom). British Museum, London. == Licensing == {{PD-art}} {| border="1" ! date/time

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