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发明名称
Methods and apparatus for the treatment of wells having multiple formations
摘要
申请公布号
US2973035(A)
申请公布日期
1961.02.28
申请号
US19540466291
申请日期
1954.11.02
申请人
BROWN CICERO C
发明人
BROWN CICERO C.
分类号
E21B43/14
主分类号
E21B43/14
代理机构
代理人
主权项
地址
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