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发明名称
Sementeringssystem for forlengingsrör, samt fremgangsmåte
摘要
申请公布号
NO951928(A)
申请公布日期
1996.01.29
申请号
NO19950001928
申请日期
1995.05.16
申请人
BAKER HUGHES INC
发明人
GAMBERTOGLIO, LOUIS M.
分类号
E21B33/14;E21B33/16;(IPC1-7):E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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