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发明名称
智力数字棋盘
摘要
省略其他视图。
申请公布号
CN3013707S
申请公布日期
1992.05.20
申请号
CN91305101.2
申请日期
1991.12.12
申请人
孟庆彪
发明人
孟庆彪
分类号
21-01
主分类号
21-01
代理机构
代理人
主权项
地址
100080北京市海淀区中关村甲21楼403室
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