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经营范围
发明名称
Heavy oil recovery
摘要
申请公布号
US2881838(A)
申请公布日期
1959.04.14
申请号
US19530388169
申请日期
1953.10.26
申请人
PAN AMERICAN PETROLEUM CORPORATION
发明人
MORSE RICHARD A.;RZASA MICHAEL J.
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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