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发明名称
WELL PIPE SUSPENSION APPARATUS
摘要
申请公布号
GB1510251(A)
申请公布日期
1978.05.10
申请号
GB19760001734
申请日期
1976.01.16
申请人
MCEVOY OILFIELD EQUIPMENT CO
发明人
分类号
E21B33/00;E21B33/04;F16J15/16;(IPC1-7):E21B23/00
主分类号
E21B33/00
代理机构
代理人
主权项
地址
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