发明名称 EDUCATIONAL GAME
摘要 A multiplication game consisting of a perforated game board in which the assemblage of perforations forms a rectangular matrix. In a horizontal row of numerals printed on the rim of the board the numerals increase evenly in value from one end to the other end, and below each numeral is disposed a column of perforations. A column of numerals is printed on the edge of the board such that the numerals increase evenly in value from one end to the other end. A set of chips is provided, the total number of which equals to the product of the largest value in the column multiplied by the largest value in the horizontal row, and each chip is insertable in a cut-out window of the board. Each chip has one numeric value inscribed on its upper face, such that for each multiplication of any number in the row with any number of the column there is found a matching numeral on a chip. Two sets of coloured stripes are printed on the upper face of the board, such that all the stripes in each set are parallel, and each stripe in a set is uniquely coloured, and all stripes in a set are perpendicular to all the stripes in the other set.
申请公布号 US2007172800(A1) 申请公布日期 2007.07.26
申请号 US20070625378 申请日期 2007.01.22
申请人 SCHWARTZ MENASHE 发明人 SCHWARTZ MENASHE
分类号 G09B19/02 主分类号 G09B19/02
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