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发明名称
Recovery of hydrocarbons
摘要
申请公布号
US2412765(A)
申请公布日期
1946.12.17
申请号
US19410404080
申请日期
1941.07.25
申请人
PHILLIPS PETROLEUM COMPANY
发明人
BUDDRUS EDWARD;CARNEY SAMUEL C.
分类号
E21B43/16;E21B43/40
主分类号
E21B43/16
代理机构
代理人
主权项
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