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发明名称
Устройство для перекрытия зон поглощения промывочной жидкости
摘要
申请公布号
SU134234(A1)
申请公布日期
1960.11.30
申请号
SU19600668376
申请日期
1960.05.31
申请人
VYSOTSKIJ V.A.;KRAVCHENKO N.S.;OKHRIMENKO N.M.;PRUTYANOV I.P.
发明人
VYSOTSKIJ V.A.;KRAVCHENKO N.S.;OKHRIMENKO N.M.;PRUTYANOV I.P.
分类号
E21B33/138;E21B33/126
主分类号
E21B33/138
代理机构
代理人
主权项
地址
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