发明名称 Erasable scratch-off lottery ticket
摘要 A scratch-off game card includes first and second sections. The first section is provided with a first set of game data covered by a substantially opaque scratch-off material. The second section is provided with a second set of game data covered by a substantially transparent material. The second section is further provided with a substantially transparent coating for marking the second section by rubbing with an object. The markings so made are erasable by, for example, pencil eraser or the like material.
申请公布号 US5544881(A) 申请公布日期 1996.08.13
申请号 US19940183389 申请日期 1994.01.19
申请人 WEBCRAFT TECHNOLOGIES, INC. 发明人 RUA, JR., LOUIS;MARTIN, STEPHEN E.
分类号 A63F3/06;A63F9/24;(IPC1-7):A63F3/06 主分类号 A63F3/06
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