Learn About Beautiful 3×3 Cube
Invention of Most Admiring 3×3 Cube 3×3 Cube invention, in March 1970, Larry D. Nichols invented the 2 × 2 × 2 puzzle “with rotating pieces in groups” 2 × 2 × 2 and filed a Canadian patent for it. Nichols’ cube was held together by magnets. Nichols was granted U.S. Patent 3,655,201 on April 11, 1972, IN …