发明名称 MULTI-TICKET LOTTERY SYSTEM
摘要 <p>A multiple ticket lottery system in which a player engages in one or more play actions on a first lottery ticket level in order to gain access to a second or higher ticket level in order to win a prize.</p>
申请公布号 EP1691907(A1) 申请公布日期 2006.08.23
申请号 EP20040806303 申请日期 2004.12.01
申请人 OBERTHUR GAMING TECHNOLOGIES, INC. 发明人 MIRANDETTE, BENOIT;PARIS, MICHEL;LACHARITE, DANIEL;GIASSON, MYRIAM
分类号 A63F3/06;A63F1/00 主分类号 A63F3/06
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