Invention Grant
US09576298B2 Coupon copy protection 有权
优惠券复制保护

Coupon copy protection
Abstract:
A data distribution system which includes business groups, a client system and a main database system is described. Coupons and coupon data may be exchanged between the business groups, the client system and the main database system. Each coupon being exchanged may include one or more fraud protection features that can neither be altered nor tampered by users, consumers or retailers.
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