| 摘要 |
PROBLEM TO BE SOLVED: To prevent the illegal combination of a game board with a main body base part. SOLUTION: A plate piece 22 is formed at a support frame 21 formed at the opening 6a of the main body base part 6. On the plate piece 22, projections 23-25 projecting toward the back surface of a first game board 10 are formed. On the first game board 10, through-holes 26-28 are formed at positions corresponding to the projections 23-25 of the main body base part 6. In the case of attaching a first game board unit 4 to the main body base part 6, the first game board unit 4 is attached to the main body base part 6 while inserting the projections 23-25 into the through-holes 26-28 of the first game board 10, respectively. COPYRIGHT: (C)2005,JPO&NCIPI
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