发明名称 |
Highly secure playing cards for instant lottery and games |
摘要 |
Tickets for an instant lottery are imprinted with lottery numbers and serial numbers that are uniquely related and the lottery numbers are covered from view until after purchase, to provide control and distribution of winners and a high degree of security from fraud. By means of computerized fabrication a low cost and high security ticket is achieved. Playing cards for other games are also inexpensively fabricated.
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申请公布号 |
US4191376(A) |
申请公布日期 |
1980.03.04 |
申请号 |
US19770763639 |
申请日期 |
1977.01.28 |
申请人 |
SYSTEMS OPERATIONS INC |
发明人 |
ALEXOFF, CARL;GOLDMAN, MAX |
分类号 |
A63F3/06;G06Q50/00;G07C15/00;(IPC1-7):A63B71/06 |
主分类号 |
A63F3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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