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发明名称
Oil well drilling apparatus with traveling block guide
摘要
申请公布号
GB1102488(A)
申请公布日期
1968.02.07
申请号
GB19660043593
申请日期
1966.09.29
申请人
LEE C. MOORE CORPORATION
发明人
分类号
B66D3/00;E21B15/00;E21B15/02;E21B19/02
主分类号
B66D3/00
代理机构
代理人
主权项
地址
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