Patents by Inventor Karl H. Krapp

Karl H. Krapp 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).

  • Telephone answering apparatus with solid state and dynamic tape storage
    Patent number: 4359607
    Abstract: A telephone has a built-in answering device comprising an outgoing message store and a control system programmable by pushbuttons for controlling the operational condition and sequence of the answering device. The advantages are compactness and ease of operation.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: November 16, 1982
    Assignee: Deutsche Fernsprecher Gesellschaft mbH Marburg
    Inventors: Hubert Hannig, Karl H. Krapp, Heinz Molleken