发明名称 COMPOSITE CUBE PUZZLE FORMED OF NUMERAL-BEARING COMPONENT CUBE GROUPS
摘要 A puzzle comprising a plurality of cube units several of which are interconnected into groups of cubes so that each group is capable of being assembled to form an overall cube, the exterior faces of each group having a designated numeral thereon so that the numerical total on the faces of adjacent cubes after being assembled is always the same along the several columns and rows of the six overall cube faces.
申请公布号 US3638949(A) 申请公布日期 1972.02.01
申请号 USD3638949 申请日期 1969.12.05
申请人 ROBERT I. THOMPSON 发明人 ROBERT I. THOMPSON
分类号 A63F9/12;(IPC1-7):A63F9/08 主分类号 A63F9/12
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