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Showing results 1 - 2 of about 2 for copyright

  1. A progressive course of inventive drawing on the principles of Pestalozzi

    ...(CC0 1.0) This content is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this...

    https://library.si.edu/digital-library/book/progressivecour00whit

  2. Up-to-date flying machine

    ...(CC0 1.0) This content is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this...

    https://library.si.edu/digital-library/book/updateflyingmac00davi

Showing results 1 - 2 of about 2 for copyright
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