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发明名称
Drilling apparatus for deep oil wells
摘要
申请公布号
GB1030992(A)
申请公布日期
1966.05.25
申请号
GB19630003596
申请日期
1963.01.29
申请人
LEE C. MOORE CORPORATION
发明人
分类号
E21B15/00
主分类号
E21B15/00
代理机构
代理人
主权项
地址
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