| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent the illegal alteration of a control board housed in a control board housing box. SOLUTION: This box is provided with a case body 1 and a cover body 2 fitted to this case box to house a control board 3 for a pachinko machine. Coupling means 40 and 41 are provided for coupling the case body 1 and the cover body 2 so as not to disconnect them. In order to perform the illegal alteration of the control board 3 such as illegal ROM exchange, it is necessary to destroy the parts coupled by the coupling means 40 and 41, and its traces are obviously left. COPYRIGHT: (C)2004,JPO
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