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发明名称
SHAFT CONSTRUCTION FOR TUNNEL
摘要
申请公布号
JPH04323495(A)
申请公布日期
1992.11.12
申请号
JP19910119443
申请日期
1991.04.22
申请人
OKUMURA CORP
发明人
INOUE SATORU
分类号
E21D7/00;E21D11/40
主分类号
E21D7/00
代理机构
代理人
主权项
地址
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