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发明名称
Forlengingsroersammenstilling og fremgangsmåte til å sette samme
摘要
申请公布号
NO20000383(D0)
申请公布日期
2000.01.25
申请号
NO20000000383
申请日期
2000.01.25
申请人
WEATHERFORD/LAMB INC
发明人
DAVISON, JOHN
分类号
E21B33/14;(IPC1-7):E21B
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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