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发明名称
Apparatus and methods for increasing well production
摘要
申请公布号
US2742091(A)
申请公布日期
1956.04.17
申请号
US19510256410
申请日期
1951.11.15
申请人
OSWALD ROTHERHAM
发明人
ROTHERHAM OSWALD
分类号
E21B36/00
主分类号
E21B36/00
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代理人
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地址
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