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发明名称
Rotary well drilling device
摘要
申请公布号
US3243001(A)
申请公布日期
1966.03.29
申请号
US19630331158
申请日期
1963.12.17
申请人
PAN AMERICAN PETROLEUM CORPORATION
发明人
VINCENT RENIC P.
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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