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发明名称
MOULTEN BATH DRILLING METHOD
摘要
申请公布号
EP1157187(B1)
申请公布日期
2005.10.12
申请号
EP20000905039
申请日期
2000.02.09
申请人
FOPPE, WERNER
发明人
FOPPE, WERNER
分类号
E21B7/15;E21B4/14;(IPC1-7):E21B7/14
主分类号
E21B7/15
代理机构
代理人
主权项
地址
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