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发明名称
STEEL INVERT CONNECTION STRUCTURE FOR TUNNEL CAPABLE OF CONTROLLING A PRESTRESS
摘要
申请公布号
KR100880351(B1)
申请公布日期
2009.01.23
申请号
KR20070044057
申请日期
2007.05.07
申请人
发明人
分类号
E21D11/00
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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