Patents for inventions : Abridgements of specifications relating to writing instruments and materials.

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Korporativní autor: Great Britain. Patent Office
Médium: Kniha
Jazyk:English
Vydáno: Lond. : Office of the Commissioners of Patents for Inventions, 1869, 1882.
Témata:
Obsah:
  • Pt.1, A.D. 1635-1866. Pt.2, A.D. 1867-1876.