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发明名称
Ströminnsnevringsanordning for bruk i produserende brönner
摘要
申请公布号
NO973040(A)
申请公布日期
1998.01.02
申请号
NO19970003040
申请日期
1997.06.30
申请人
BAKER HUGHES INC
发明人
COON, ROBERT J.
分类号
E21B34/06;E21B43/12;(IPC1-7):E21B43/12
主分类号
E21B34/06
代理机构
代理人
主权项
地址
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