A cashless gaming apparatus and method suitable for casinos. A player hands over money and an ID card to a clerk at a validation terminal. The clerk stores the ID number and the amount of money in the memory of the validation terminal. Then the clerk returns the ID card to the player for operating any...http://www.google.de/patents/US5265874?utm_source=gb-gplus-sharePatent US5265874 - Cashless gaming apparatus and method
