A system for creating, dispensing, and redeeming electronic discount coupons in a store. The system includes a "smart card", product stations adjacent to selected products in the store, and a checkout station in the checkout area. To create an electronic coupon, the customer inserts the card into...http://www.google.de/patents/US5727153?utm_source=gb-gplus-sharePatent US5727153 - Retail store having a system of receiving electronic coupon information from a portable card and sending the received coupon information to other portable cards
Retail store having a system of receiving electronic coupon information from ...
