Patents Assigned to General Symmetrics, Inc.
  • Patent number: 4415158
    Abstract: Puzzles, including both two dimensional and three dimensional versions, are comprised of movable segmented segments on a base. In various embodiments the base is a sphere. The segmented sections form geometric figures and each geometric figure has a common segmented section with another geometric figure. In the two-dimensional version the geometric figure is in the form of a circle. In the three-dimensional versions the geometric figure is in the form of a sphere; a square, with the segmented sections forming a cube; a triangle, with the segmented sections forming tetrahedron; or a pentagon, with the segmented sections forming a dodecahedron.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: November 15, 1983
    Assignee: General Symmetrics, Inc.
    Inventor: Douglas A. Engel