发明名称 Tetrahedral twist: chemistry puzzle and teaching device
摘要 A twisting three dimensional puzzle apparatus for the study of chemistry and its history and based upon the Zmaczynski equilateral triangular model of the periodic table of the chemical elements. Each face of the pyramid has a series of equilateral shaped portions bearing portions of the periodic table of elements. The different segments can be rotated around in order to scramble the puzzle. Such portions can be constructed using same or similar technology that was used to design the Meffert PYRAMINX PUZZLE that is similar to the RUBIK'S CUBE design.
申请公布号 US6361324(B1) 申请公布日期 2002.03.26
申请号 US20000729161 申请日期 2000.12.05
申请人 POSSIDENTO WILLIAM 发明人 POSSIDENTO WILLIAM
分类号 G09B23/24;(IPC1-7):G09B23/24 主分类号 G09B23/24
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