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Showing results 1 - 2 of about 2 for copyright

  1. The man in the battle plane

    ...(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/manbattleplane00step

  2. Natural tangents to every second of arc and eight places of decimals

    ...(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/naturaltangents00giff

Showing results 1 - 2 of about 2 for copyright
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