发明名称 Playing cards for an educational game
摘要 A pack of playing cards for an educational game comprises a number of sets of cards exactly equal to the number of faces on a die. Each card has a front and rear face, each rear face being identical to each other. Each card has disposed on the front face at least one question and answer and a depiction of at least one die-face, the number represented by the die-face being credited to a player correctly answering the question on the card during the game. Each card of each set has disposed thereon the depiction of the same die-face, the die-face being different in each set, and there being equal numbers of cards in each set.
申请公布号 US5836587(A) 申请公布日期 1998.11.17
申请号 US19960664178 申请日期 1996.06.14
申请人 DRUCE, HARRY FREDERICK;DRUCE, JOHN MICHAEL 发明人 DRUCE, HARRY FREDERICK;DRUCE, JOHN MICHAEL
分类号 A63F1/04;A63F3/00;A63F9/00;A63F9/18;A63F11/00;G09B1/32;G09B3/02;G09B19/00;G09B19/02;G09B19/08;(IPC1-7):A63F1/00 主分类号 A63F1/04
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