| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine by which a fraudulent action to the game machine can be found out and prevented. SOLUTION: A first discriminating seal LB having a holding layer where many fine glass beads arranged in lines are embedded while partially exposed, a printing layer printed on the side of a face where a many glass beads are exposed, and a reflecting layer arranged on the side of a holding layer and reflecting an irradiation light of a predetermined wavelength irradiated from the side of the face where the many glass beads are exposed is affixed so as to straddle on an IC tag TG or a second discriminating seal and a plate section 2b formed on a base plate case B of a control base plate unit UN. The fraudulent action can be found out and prevented by searching the presence or absence of the generation of a specific optical pattern when irradiating the first discriminating seal LB with the irradiation light of the predetermined wavelength. COPYRIGHT: (C)2011,JPO&INPIT
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