发明名称 Multicolor overprinting of scratch-off lottery tickets
摘要 A method of producing a lottery ticket and lottery tickets produced thereby wherein an overprint region is provided over at least a scratch-off layer, the overprint region comprising an image obtained from a design in which the colors in the design have been separated into half tone images of each color and are superimposed on at least the scratch-off layer of the lottery ticket.
申请公布号 US5803504(A) 申请公布日期 1998.09.08
申请号 US19970795285 申请日期 1997.02.04
申请人 BABN TECHNOLOGIES CORPORATION 发明人 DESHIENS, JEAN-PIERRE;HOLMAN, STEPHEN JOHN
分类号 A63F3/06;(IPC1-7):B42D15/00 主分类号 A63F3/06
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