Patents by Inventor Howard M. Harrison

Howard M. Harrison 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).

  • Periodical holder
    Patent number: 4138055
    Abstract: Periodical holder consisting of a diaphragm having cuts to divide it into a plurality of flexible fingers.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: February 6, 1979
    Inventor: Howard M. Harrison