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发明名称
NET BASE ROCK SEMI-SHIELD TUNNELLING METHOD AND NEW BASE ROCK SEMI-SHIELD MACHINE FOR IT
摘要
申请公布号
JPH0988482(A)
申请公布日期
1997.03.31
申请号
JP19950276097
申请日期
1995.09.20
申请人
NISSAN KENSETSU KK
发明人
NITTA MINORU
分类号
E21D9/06;E21D9/08;E21D9/12;(IPC1-7):E21D9/12
主分类号
E21D9/06
代理机构
代理人
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