A coin pay-out apparatus in which a rotary disc is rotated by a motor to effect a coin pay-out. The motor is controlled by a plurality of binary input signals. Only when a combination of the plurality of input signals is found to be a predetermined combination including the binary input signals, is the...http://www.google.fr/patents/US4753625?utm_source=gb-gplus-shareBrevet US4753625 - Coin pay-out apparatus