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发明名称
平面图棋盘
摘要
省略其它视图。
申请公布号
CN3013794S
申请公布日期
1992.05.27
申请号
CN91301915.1
申请日期
1991.07.27
申请人
艾德兴
发明人
艾德兴
分类号
21-01
主分类号
21-01
代理机构
吉林省专利服务中心
代理人
赵正
主权项
地址
130021吉林省长春市岳阳街甲2号市少年宫
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