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发明名称
Drain Apparatus and Method for Concrete Lining in Tunnel
摘要
申请公布号
KR101065263(B1)
申请公布日期
2011.09.16
申请号
KR20090054483
申请日期
2009.06.18
申请人
发明人
分类号
E21D11/38
主分类号
E21D11/38
代理机构
代理人
主权项
地址
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