发明名称 Virtual scratch card system and method
摘要 The present application provides for a virtual scratch card-like system in a wireless network environment. The virtual scratch card system allows for receipt of token-based payments, the redemption of those payments, and for the exchange of token-based payments for smaller denominations of token-based payments.
申请公布号 US2003154179(A1) 申请公布日期 2003.08.14
申请号 US20020072632 申请日期 2002.02.08
申请人 MERCER DAVID E.W. 发明人 MERCER DAVID E.W.
分类号 G06Q20/00;G07F7/02;(IPC1-7):G06F7/00 主分类号 G06Q20/00
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