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发明名称
UNDERGROUND CONSTRUCTION METHOD BY MUDDY WATER EXCAVATION
摘要
申请公布号
JPH0220720(A)
申请公布日期
1990.01.24
申请号
JP19880167778
申请日期
1988.07.07
申请人
TAISEI CORP
发明人
KANI CHOEI;SATO TATSUO
分类号
E21B21/06;E02D17/04;E02D23/08
主分类号
E21B21/06
代理机构
代理人
主权项
地址
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