Patents by Inventor Howard L. Krum

Howard L. Krum 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).

  • Printer for electric coding machines
    Patent number: 4185928
    Abstract: 8.
    Type: Grant
    Filed: December 15, 1944
    Date of Patent: January 29, 1980
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Howard L. Krum, Rolf A. Thienemann