An arrangement for a game playing device comprising a game playing apparatus which controls a prize delivering machinery (10), a feeding device (7) for a token (8) for starting the game playing apparatus against a payment, and a tuner (11) controlling the prize delivering machinery. The tuner improves...http://www.google.ca/patents/US5104129?utm_source=gb-gplus-sharePatent US5104129 - Arrangement for a game playing device
