Patents by Inventor Alexander R. Fraser

Alexander R. Fraser 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).

  • Patent number: 4267841
    Abstract: A nail matrix trephine includes clamping head for clamping the trephine to a nail plate and a guide head for guiding a trephine cutter. The clamping head and guide head are interconnected by means of an adjustment device so that when the clamping head is clamped to the nail plate the guide head is adjusted relative thereto so that the trephine cutter is guided to remove preselected nail matrix cells.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: May 19, 1981
    Inventor: Alexander R. Fraser