Steven R. Shanin

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Highland Park, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Puzzle cubes for forming rectangular parallelepipeds
- Patent number 4,210,333
- Issue date Jul 1, 1980
- Steven R. Shanin
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Puzzle device including polyhedrons and support structure therefor
- Patent number 4,210,332
- Issue date Jul 1, 1980
- Steven R. Shanin
- A63 - SPORTS GAMES AMUSEMENTS