| 摘要 |
PROBLEM TO BE SOLVED: To provide a lid that can be put on a conventional pachinko ball case used at a pachinko game parlor to cover the opening and can prevent spilling out or theft of pachinko balls. SOLUTION: A lid covering the opening of a pachinko ball case has a drooping wall butting the inwall of the pachinko ball case formed along the inside periphery of the pachinko ball case and a ceiling portion swollen upward from the top face of the pachinko ball case.
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