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经营范围
发明名称
Wellhead connector with additional load shoulders
摘要
申请公布号
GB2334273(B)
申请公布日期
2002.04.03
申请号
GB19990001210
申请日期
1999.01.21
申请人
* ABB VETCO GRAY INC;* ABB VETCO GRAY, INC.
发明人
THOMAS F * SWEENEY;THOMAS A * FRASER;GLEN H * CUIPER;BRIAN L * KIRK
分类号
E21B33/038;(IPC1-7):E21B33/038;F16L37/12
主分类号
E21B33/038
代理机构
代理人
主权项
地址
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