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Blankenburg; Karl V.
Washington, MI
No. of patents:

Patent Number Title Of Patent Date Issued
D375226 Drink container November 5, 1996
D369529 Drink container holder May 7, 1996
5242735 Structural module September 7, 1993
A structural module includes a plurality of hollow cells having flat top ends, opposed open ends and side walls extending between both ends. The flat top ends are arranged in a first plane. Flat portions formed adjacent to the open ends of the cells are arranged in a second plane spaced
5236196 Spherical body formed of polygonal members August 17, 1993
A spherical body is formed of a plurality of polygonal-shaped members interconnected together at abutting side walls. Each polygonal member has an exterior surface disposed at a predetermined radius of curvature, with the exterior surfaces of the plurality of interconnected polygonal mem
5116053 Puzzle May 26, 1992
A self-contained puzzle includes an axially extending tube with first and second end caps mounted on opposite ends. A plurality of gears are concentrically and rotatably mounted about the tube between the first and second end caps. Slide support elements on each of the gears form channel

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