One of a number of automatic vending machines run by one or more operators accepts payment for the goods it dispenses by creditable and debitable cash card, also called smart card. The machine includes a currency acceptor that writes on the card the sum in bank notes received by the currency acceptor....http://www.google.fr/patents/US7108180?utm_source=gb-gplus-shareBrevet US7108180 - Vending machine with electronic payment media
