发明名称 Magnetic square and jig saw puzzle
摘要 A number problem game which comprises a playing board having a planar surface thereon, with an odd number of squares arranged in an equal number of horizontal and vertical rows intersecting each other on the playing board, as well as a plurality of playing elements with each element having a different numbered indicia thereon. The elements being arrangeable on the squares of the board to satisfy a predetermined value which is satisfied by the arithmetical equation:
申请公布号 US4138115(A) 申请公布日期 1979.02.06
申请号 US19760752407 申请日期 1976.12.20
申请人 GANS, ERNEST 发明人 GANS, ERNEST
分类号 A63F3/02;A63F3/04;A63F9/10;G09B1/06;G09B1/08;(IPC1-7):A63F9/06 主分类号 A63F3/02
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