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发明名称
Method for drilling deviating bores from existing well bores
摘要
申请公布号
US2743082(A)
申请公布日期
1956.04.24
申请号
US19500165081
申请日期
1950.05.29
申请人
ZUBLIN JOHN A
发明人
ZUBLIN JOHN A.
分类号
E21B7/06;E21B7/08
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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