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发明名称
WELL HEAD SEALING ASSEMBLY
摘要
申请公布号
JPS61266795(A)
申请公布日期
1986.11.26
申请号
JP19860101901
申请日期
1986.05.01
申请人
CAMERON IRON WORKS INC
发明人
KERII ESU KOPUREE
分类号
E21B33/06;E21B33/00;E21B33/04;F16J15/02
主分类号
E21B33/06
代理机构
代理人
主权项
地址
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