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    Basic patent and trade-mark laws of the principal belligerent powers together with war legislation, ordinances, and edicts since August 1, 1914, to January 1, 1919, affecting paten... by Langner, Lawrence, 1890-1962

    Published 1974
    Subjects: “…Patent laws and legislation. http://id.loc.gov/authorities/subjects/sh85098644.…”
    Book
  2. 2
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