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发明名称
教学板
摘要
省略其它视图。
申请公布号
CN300725120D
申请公布日期
2007.12.26
申请号
CN200730000024.8
申请日期
2007.01.05
申请人
郑滢轩
发明人
郑滢轩
分类号
19-07
主分类号
19-07
代理机构
北京汇泽知识产权代理有限公司
代理人
闫立德
主权项
地址
100101北京市朝阳区小营路十号阳明广场12A
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