Patents by Inventor Victor Plotkin

Victor Plotkin 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).

  • Engraving apparatus
    Patent number: 4500236
    Abstract: An engraving spindle assembly is removably mounted on one of two links of pantograph to change the magnification of indicia to be engraved on a work piece. The spindle assembly is pivotable about the mounting means on each of said links to facilitate lefthand or righthand operation.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: February 19, 1985
    Assignee: New Hermes Incorporated
    Inventor: Victor Plotkin