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发明名称
METHOD OF CONSTRUCTING WIDENING PORTION OF TUNNEL
摘要
申请公布号
JPS54150823(A)
申请公布日期
1979.11.27
申请号
JP19780059101
申请日期
1978.05.17
申请人
KUBOTA LTD
发明人
AIBA TSUTOMU
分类号
E21D9/01;E21D9/00;E21D9/06;E21D11/00
主分类号
E21D9/01
代理机构
代理人
主权项
地址
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