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经营范围
发明名称
Oil recovery process
摘要
申请公布号
US2788071(A)
申请公布日期
1957.04.09
申请号
US19540414489
申请日期
1954.03.05
申请人
SINCLAIR OIL & GAS COMPANY
发明人
PELZER HARRY L.
分类号
E21B43/24
主分类号
E21B43/24
代理机构
代理人
主权项
地址
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