Patents by Inventor Sheen Tzong-Lin

Sheen Tzong-Lin 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).

  • Versatile vise
    Patent number: 4824084
    Abstract: A kind of vise comprising a back jaw and a front jaw which are separately provided with a plurality of different jaw faces corresponding to one another for pinching different shapes of things or material, the faces are changeable in their position by turning for choosing the most proper one for pinching a thing to be worked on. A punch set on the screw is also able to punch a hole.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: April 25, 1989
    Inventor: Sheen Tzong-Lin