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发明名称
Способ установки паккера при работе с погружными гидравлическими или пневматическими насосами
摘要
申请公布号
SU70687(A1)
申请公布日期
1947.11.30
申请号
SU19470353528
申请日期
1947.03.24
申请人
SHLIDMAN V.M.
发明人
SHLIDMAN V.M.
分类号
E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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