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发明名称
Mittels Drahtseil/Wickelrohrstrang rückholbare Bohrlochpumpe
摘要
申请公布号
DE19781530(T1)
申请公布日期
1999.03.18
申请号
DE19971081530T
申请日期
1997.11.18
申请人
BAKER-HUGHES INC., HOUSTON, TEX., US
发明人
TETZLAFF, STEVEN K., HUNTINGTON BEACH, CALIF., US;COZZENS, KENT, VENTURA, CALIF., US
分类号
E21B31/00;E21B43/12;(IPC1-7):F04D13/10
主分类号
E21B31/00
代理机构
代理人
主权项
地址
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