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发明名称
Tunnelling method using pre-support concept and an adjustable apparatus thereof
摘要
申请公布号
KR100740200(B1)
申请公布日期
2007.07.18
申请号
KR20050114621
申请日期
2005.11.29
申请人
发明人
分类号
E21D9/04;E21D9/00
主分类号
E21D9/04
代理机构
代理人
主权项
地址
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