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发明名称
TUNNEL SEGMENT
摘要
申请公布号
JPH11294095(A)
申请公布日期
1999.10.26
申请号
JP19980095932
申请日期
1998.04.08
申请人
KUBOTA CORP
发明人
KONNO TSUTOMU;WATANABE TAKASHI
分类号
E21D11/14;(IPC1-7):E21D11/14
主分类号
E21D11/14
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代理人
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