| 摘要 |
PROBLEM TO BE SOLVED: To prevent fraudulent change of the setting in a game machine such as a slot machine. SOLUTION: The game machine 1 has three reels 10a, 10b and 10c with various symbols, and the display mode of the patterns is varied by rotating the reels 10a, 10b and 10c. The rotation of the reels 10a, 10b and 10c is stopped by a player operating stop buttons 26, 28 and 30, when a specific symbol arrangement is achieved in a display window 8 at the time, the player is given a privilege of winning. The probability of receiving the privilege can be set in stages by operating a switch inside a casing 2, and the setting can not be changed unless a front door 4 of the casing is opened. COPYRIGHT: (C)2005,JPO&NCIPI
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