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发明名称
Glideskjøt for intervensjon-stigerør
摘要
申请公布号
NO20003348(D0)
申请公布日期
2000.06.27
申请号
NO20000003348
申请日期
2000.06.27
申请人
BAKER HUGHES INC
发明人
MILNE, RANALD;TENNOY, OTTO
分类号
E21B17/08;E21B19/00;(IPC1-7):E21B
主分类号
E21B17/08
代理机构
代理人
主权项
地址
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