Patents by Inventor Martin B. Perkins

Martin B. Perkins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

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    Patent number: D252853
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: September 11, 1979
    Inventor: Martin B. Perkins