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发明名称
DIAGONAL WELL POINT CONSTRUCTION METHOD FOR TUNNELING
摘要
申请公布号
JPH0381494(A)
申请公布日期
1991.04.05
申请号
JP19890216974
申请日期
1989.08.23
申请人
MAEDA CORP
发明人
AOKI TADASHI;HATTORI HIROSHI
分类号
E21D9/04
主分类号
E21D9/04
代理机构
代理人
主权项
地址
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