发明名称 Lottery number selector
摘要 A lottery number selector is provided and consists of a set of numbered cards so that a series of numbers can be selected at random for a state lottery drawing. A dispenser device can be used to hold at least one set of randomly mixed numbered cards so that a person can remove the top cards one at a time. The dispenser device is rotatable about its base and has a mechanism for recording the numbers selected when each card is removed.
申请公布号 US4669732(A) 申请公布日期 1987.06.02
申请号 US19850748163 申请日期 1985.06.24
申请人 ZEBROWSKI, DAVID;SPECTOR, GEORGE 发明人 ZEBROWSKI, DAVID;SPECTOR, GEORGE
分类号 A63F1/14;A63F3/06;G07C15/00;(IPC1-7):A63F1/10 主分类号 A63F1/14
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