A slot machine includes a plurality of rotary drums on the periphery of which plural frames of patterns are depicted. Detecting plates are connected to each rotary drum and the detecting plates are provided with pattern detecting elements whose number corresponds to the number of frames. Readers detect...http://www.google.fr/patents/US4515366?utm_source=gb-gplus-shareBrevet US4515366 - Slot machine with pattern confirmation and correction means
Slot machine with pattern confirmation and correction means
