Patents by Inventor Manfred Hans Barth

Manfred Hans Barth 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).

  • Hand setting device for small switches
    Patent number: 3987618
    Abstract: A hand setting device for small watches with an axially movable hand setting stem which has a recess into which a setting lever engages, rotary positioned at a front frame, which serves for operating a rocking bar which is effected by a return spring, which carries at least one tooth wheel that can engage and disengage with the setting pinion for the hands.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: October 26, 1976
    Assignee: Timex Corporation
    Inventor: Manfred Hans Barth