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发明名称
WELLHEAD STRUCTURE AND METHOD OF ASSEMBLING SAME
摘要
申请公布号
EP0316071(A3)
申请公布日期
1989.12.20
申请号
EP19880309523
申请日期
1988.10.12
申请人
CAMERON IRON WORKS USA, INC. (A DELAWARE CORP.)
发明人
SZYMCZAK, EDWARD J.;CASSITY, THOMAS G.;TAYLOR, WILLIAM M.;TIEMER, PEER H.;HOES, LARRY M.;SMITH, JERRY D.;DAVIES, TIMOTHY C.
分类号
E21B33/037;E21B33/00;E21B33/04;F16L13/16;(IPC1-7):E21B33/04;F16L13/14
主分类号
E21B33/037
代理机构
代理人
主权项
地址
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