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发明名称
摘要
申请公布号
KR101051720(B1)
申请公布日期
2011.07.25
申请号
KR20090067285
申请日期
2009.07.23
申请人
发明人
分类号
E02D3/12;C09K17/10;E21B33/13;E21D11/00
主分类号
E02D3/12
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代理人
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