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发明名称
ENLARGING SHIELD DRILLING CONSTRUCTION METHOD
摘要
申请公布号
JPS6136494(A)
申请公布日期
1986.02.21
申请号
JP19840157393
申请日期
1984.07.30
申请人
MITSUI CONSTR CO LTD;KAJIMA CORP
发明人
KANEKO HARUO;YUASA YASUTAKA
分类号
E21D9/06;E21D11/04
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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