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发明名称
METHOD FOR PLACING PACKER WITH CIRCULATION VALVE IN WELL
摘要
申请公布号
SU1008417(A1)
申请公布日期
1983.03.30
申请号
SU19813278852
申请日期
1981.04.24
申请人
SARATOVSKIJ SP K BYURO V N-PROIZV OBEDINENIYA "SOYUZGAZAVTOMATIKA"
发明人
KOTOV YURIJ I,SU;FILIPPOV ANATOLIJ A,SU;DALSKIJ BORIS P,SU
分类号
E21B33/12;(IPC1-7):E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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