| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent the fraudulent alteration of a control board housed in a control board housing box. SOLUTION: A case body 1 and a cover body 2 attached to it are provided and the control board 3 in a pachinko game machine is housed. Connecting means (40 and 41) for inseparably connecting the case body 1 and the cover body 2 are provided. A connected part by the connecting means (40 and 41) has to be destroyed in order to perform the fraudulent alteration such as fraudulent ROM exchange of the control board 3, and the trace remains clearly. COPYRIGHT: (C)2006,JPO&NCIPI
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