A data generating device 300 for use in combination with a coin mechanism 100 of a bulk vending machine 10, is provided. The combination uses a standard coin mechanism of a bulk vending machine, which in its normal operation is received into an opening in the bulk vending machine. The coin mechanism...http://www.google.com/patents/US6290049?utm_source=gb-gplus-sharePatent US6290049 - Data generating device for bulk vending machines
