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发明名称
Method and apparatus for permanently locking open a well flow control device
摘要
申请公布号
GB2079820(A)
申请公布日期
1982.01.27
申请号
GB19810021537
申请日期
1981.07.13
申请人
BAKER INTERNATIONAL CORP
发明人
分类号
E21B34/00;E21B34/10;E21B34/14;(IPC1-7):E21B34/14
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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