File:Lignes de courant plaque, Otto Lilienthal.png

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Français : Lignes de courant plaque, Otto Lilienthal, d'après "Der Vogelflug als Grundlage der Fliegekunst", Otto Lilienthal, [1]
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The tradition of technology : landmarks of Western technology in the collections of the Library of Congress /

Leonard C. Bruno. [2]
Author Unknown authorUnknown author

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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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current16:39, 20 February 2022Thumbnail for version as of 16:39, 20 February 2022640 × 811 (255 KB)Bernard de Go Mars (talk | contribs)Uploaded a work by Unknown from The tradition of technology : landmarks of Western technology in the collections of the Library of Congress / Leonard C. Bruno. [https://babel.hathitrust.org/cgi/pt?id=mdp.39015037139576&view=1up&seq=24&skin=2021] with UploadWizard

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