| 摘要 |
PROBLEM TO BE SOLVED: To prevent the setup a game machine such as a slot machine from being fraudulently changed. SOLUTION: The slot machine 1 includes three reels 10a, 10b and 10c to which various kinds of symbols are attached, and the display form of the symbols is varied by rotating the reels 10a, 10b and 10c. A player stops the rotation of the reels 10a, 10b and 10c by operating stop buttons 26, 28 and 30, and when a prescribed symbol array is achieved inside a display window 8 at the time, a winning privilege is given to the player. The probability of giving the winning privilege can be set stepwise by operating a switch inside a case body 2. The can not be changed unless a switch signal is correctly transmitted. COPYRIGHT: (C)2009,JPO&INPIT
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