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发明名称
KOPLINGSANORDNING FOR ROERLEDNING.
摘要
申请公布号
NO841512(A)
申请公布日期
1984.10.29
申请号
NO19840001512
申请日期
1984.04.16
申请人
VETCO OFFSHORE, INC.,
发明人
SWEENEY, THOMAS FRANKLIN,
分类号
E21B17/08;F16L39/00;(IPC1-7):F16L/
主分类号
E21B17/08
代理机构
代理人
主权项
地址
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