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发明名称
ROERKOPLING.
摘要
申请公布号
NO852229(A)
申请公布日期
1985.12.05
申请号
NO19850002229
申请日期
1985.06.03
申请人
HUNTING OILFIELD SERVICES (UK) LIMITED,;KAWASAKI STEEL CORPORATION,
发明人
JONES, DONALD NORMAN,;DEARDEN, GEOFFREY CAVE,;UENO, KATSUO,
分类号
F16L15/04;E21B17/042;F16L15/00;(IPC1-7):F16L/
主分类号
F16L15/04
代理机构
代理人
主权项
地址
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