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发明名称
ROERSKJOET
摘要
申请公布号
NO841324(A)
申请公布日期
1984.10.08
申请号
NO19840001324
申请日期
1984.04.04
申请人
HUNTING OILFIELD SERVICES (UK) LTD,
发明人
LUMSDEN, NORMAN,;MCGUGAN, JOHN DRUMMOND,
分类号
E02D5/52;E21B17/046;F16L15/04;F16L37/62;(IPC1-7):F16L/
主分类号
E02D5/52
代理机构
代理人
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