Patents Assigned to Horace A. Knowles
  • Thumb twiddling toy
    Patent number: 4227342
    Abstract: A novelty toy used to facilitate thumb twiddling comprises a pair of closely spaced, parallel, tubular holes each adapted to receive the first digit of a thumb, the walls of the holes being smooth and slippery, and of diameter slightly larger than the thumbs. The thumbs are inserted into the holes and are rotated orbitally about an imaginary axis between the two holes.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: October 14, 1980
    Assignee: Horace A. Knowles
    Inventor: Horace A. Knowles