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发明名称
Wellhead
摘要
申请公布号
GB2114184(A)
申请公布日期
1983.08.17
申请号
GB19820001982
申请日期
1982.01.25
申请人
JEREMY IAN * MOCKRIDGE
发明人
JEREMY IAN * MOCKRIDGE
分类号
E21B33/04;(IPC1-7):E21B33/04
主分类号
E21B33/04
代理机构
代理人
主权项
地址
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