LIBROS DEL AUTOR: commissioners of patents

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  • Patents For Inventions
    Commissioners Of Patents
    ''Patents for Inventions: Abridgments of Specifications Relating to Aeronautics, 1815-1866'' is a book published in 1869 by the Commissioners of Patents. The book contains a collection of abridged specifications for patents related to aeronautics, spanning the years 1815 to 1866. The abridgments provide concise summaries of the inventions and their respective patent specificati...
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