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US 3655201

How the 2x2x2 Magnetic Puzzle Cube Works

A 1970 patent for a 2x2x2 puzzle cube held together by magnets that allows groups of pieces to rotate around three axes to solve a color-matching challenge.

Statusexpired

Granted1972

Expires1990

Claims14

Forward citations75

Prior art5

AssigneeMoleculon Research Corp

InventorsLarry D Nichols

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