发明名称 Rotatable demountable blocks of several shapes on a central elastic anchor
摘要 An educational toy that lets the user experiment with assembling components of different shapes in a variety of ways. The toy introduces new methods and means for assembling building blocks allowing the user to assemble them to one configuration and then to change over to other configurations by rotating, pivoting, rolling, or shifting one or more of the already assembled building blocks. The toy can introduce the user to number systems and arithmetic and geometric principles.
申请公布号 US5302148(A) 申请公布日期 1994.04.12
申请号 US19910746245 申请日期 1991.08.16
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分类号 A63F9/08;A63H33/10;(IPC1-7):A63H33/10;A63H33/00;A63F9/06;G06C1/00 主分类号 A63F9/08
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