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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
KR20060059833(A)
申请公布日期
2006.06.02
申请号
KR20050114621
申请日期
2005.11.29
申请人
SEO, DONG HYUN
发明人
SEO, DONG HYUN
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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