Rubik’s Cube 1983 US Patent Technical Diagram Chalkboard Style Poster

A chalkboard-style US patent diagram of the Rubik’s Cube, dated March 29, 1983, with twelve detailed technical figures.

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Description

This U.S. Patent blueprint of the Rubik's Cube (Patent 4,378,116, March 29, 1983) lays out twelve technical drawings of the puzzle's inner mechanism on a dark chalkboard background. A perfect gift for puzzle fans, engineers and gamers, it adds smart retro character to offices, game rooms and dorms.

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$12.99