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经营范围
发明名称
WELL HEAD STRUCTURE
摘要
申请公布号
JPS63272891(A)
申请公布日期
1988.11.10
申请号
JP19880039321
申请日期
1988.02.22
申请人
CAMERON IRON WORKS INC
发明人
UIRIAMU EMU TEIRAA
分类号
E21B33/035;E21B33/00;E21B33/04;F16J15/08
主分类号
E21B33/035
代理机构
代理人
主权项
地址
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