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发明名称
Method and apparatus for making drilled piles in hard ground
摘要
申请公布号
EP1229172(B1)
申请公布日期
2004.04.28
申请号
EP20020290128
申请日期
2002.01.18
申请人
COMPAGNIE DU SOL
发明人
GOUVENOT, DANIEL
分类号
E21B45/00;E02D1/02;E02D13/06;E21B44/00;E21B49/00;(IPC1-7):E02D13/06
主分类号
E21B45/00
代理机构
代理人
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地址
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