发明授权
- 专利标题: Game ticket confusion patterns
- 专利标题(中): 游戏机混乱模式
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申请号: US4157申请日: 1993-01-13
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公开(公告)号: US5346258A公开(公告)日: 1994-09-13
- 发明人: William F. Behm , Stanley Litman , Bradly W. Walton
- 申请人: William F. Behm , Stanley Litman , Bradly W. Walton
- 申请人地址: GA Alpharetta
- 专利权人: Scientific Games, Inc.
- 当前专利权人: Scientific Games, Inc.
- 当前专利权人地址: GA Alpharetta
- 主分类号: A63F3/06
- IPC分类号: A63F3/06 ; B42D15/00
摘要:
Security of game cards such as instant lottery tickets can be improved by locating a confusion pattern below a primer layer on the game cards substrate and by locating another confusion pattern on a release coat above the game card play indica. Game card security can be further enhanced by using confusion pattern ink that bleeds through the game card in response to the application of various solvents.
公开/授权文献
- US6108337A Resource manager for a virtual bearer channel platform 公开/授权日:2000-08-22
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