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发明名称
Install structure of outer casing for developing of underground water well
摘要
申请公布号
KR100885301(B1)
申请公布日期
2009.02.23
申请号
KR20080057907
申请日期
2008.06.19
申请人
发明人
分类号
E21D1/00
主分类号
E21D1/00
代理机构
代理人
主权项
地址
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