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经营范围
发明名称
FULL BORE INTERNAL TIEBACK SYSTEM
摘要
申请公布号
GB9306551(D0)
申请公布日期
1993.05.26
申请号
GB19930006551
申请日期
1993.03.30
申请人
ABB VETCO GRAY INC
发明人
分类号
E21B33/038
主分类号
E21B33/038
代理机构
代理人
主权项
地址
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