Machine e.g. retraction machine, for bottle with refundable deposit, has function key for decision-making on interest of profit play, where customer decides whether he would like to pay out deposit or to participate in play by using key

摘要

The machine has a function key (3) for decision-making on an interest of a profit play, where a customer decides whether he would like to pay out a deposit or to participate in the profit play by using the function key.