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发明名称
棋盘
摘要
1.右视图与左视图对称，省略右视图。2.俯视图与仰视图对称，省略俯视图。合拢状态图
申请公布号
CN3008681S
申请公布日期
1991.03.20
申请号
CN90303092.6
申请日期
1990.09.19
申请人
丽怡实业有限公司
发明人
吴景文
分类号
21-01-T0272
主分类号
21-01-T0272
代理机构
上海专利事务所
代理人
张恒康
主权项
地址
香港九龙宫塘鸿图道44-46号世纪工商中心906室
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