发明名称 Trustee instrument of gift-voucher type for use as a conventional gift voucher or for paying for goods over the Internet has an identifying zone that can be uncovered by scratching and then used to authenticate the voucher
摘要 Internet trustee gift-voucher comprises two information zones containing validation codes, one of which is concealed and marked prior to use. A key correlates between the zones and the concealed zone is uncovered and an identifier transmitted via Internet to a server for authentication of the voucher. The voucher can also be hand delivered and a validation code sent over the Internet.
申请公布号 FR2806190(A1) 申请公布日期 2001.09.14
申请号 FR20000003183 申请日期 2000.03.13
申请人 FAVREAU GUY 发明人 FAVREAU GUY
分类号 B42D15/00;G07F7/02;G07F7/12;(IPC1-7):G06K19/10;H04L9/32;B42D15/10 主分类号 B42D15/00
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