LIBROS DEL AUTOR: united states patent and trademark offi

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  • Manual Of Classification Of Subjects Of Invention Of The United States Patent Office
    United States. Patent and Trademark Offi / United StatesPatent and Trademark Offi
    This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important ...
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