发明名称 GAMING TICKET
摘要 The present invention provides a gaming ticket having one or more windows, the windows being defined by lines of weakness which tear unevenly as the window is opened to reveal tampering. In a preferred embodiment, the lines of weakness comprise perforations separated by substantial webs, the perforations being elongate slits which lie transverse the line of weakness. -6-
申请公布号 CA2218568(C) 申请公布日期 2003.08.12
申请号 CA19972218568 申请日期 1997.10.16
申请人 BINGO PRESS & SPECIALTY LIMITED 发明人 STEWART, BRUCE;BRIGHT, IAN
分类号 A63F3/06;(IPC1-7):B42D15/04 主分类号 A63F3/06
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