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发明名称
Dual completion tool
摘要
申请公布号
US3247904(A)
申请公布日期
1966.04.26
申请号
US19630269517
申请日期
1963.04.01
申请人
RICHFIELD OIL CORPORATION
发明人
JR. CHARLES E. WAKEFIELD,
分类号
E21B43/14
主分类号
E21B43/14
代理机构
代理人
主权项
地址
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