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Risdon Iron v. Medart

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Citation Edit

Risdon Iron & Locomotive Works v. Medart, 158 U.S. 68 (1895) (full-text).

U.S. Supreme Court Proceedings Edit

A valid patent cannot be obtained for a process which involves nothing more than the operation of a piece of equipment; that is, for the function of a machine. A valid patent cannot be issued only for superior workmanship.

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