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经营范围
发明名称
Structure of prevent boring
摘要
申请公布号
KR200410820(Y1)
申请公布日期
2006.03.08
申请号
KR20050037197U
申请日期
2005.12.30
申请人
发明人
分类号
E02B3/12;E02B3/14
主分类号
E02B3/12
代理机构
代理人
主权项
地址
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