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发明名称
Method for detecting the source and analyzing the flow of water intrusions in oil wells
摘要
申请公布号
US2660887(A)
申请公布日期
1953.12.01
申请号
US19500182770
申请日期
1950.09.01
申请人
FREDERICK FREI
发明人
FREI FREDERICK
分类号
E21B47/10
主分类号
E21B47/10
代理机构
代理人
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