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The Giant Hectix is a double-sized version of Hexsticks, which was licensed to 3M for manufacturer. About 100,000 were made and sold from 1971 to 1979. U.S. Patent Number 3721448. It uses nine pieces with two notches each, and three pieces with three notches. Stewart made 4 in 1993. Number 25B in his numbering system.
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