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发明名称
APPARATUS FOR RETAINING A PACKER
摘要
申请公布号
SU964104(A1)
申请公布日期
1982.10.07
申请号
SU19803226759
申请日期
1980.12.29
申请人
KALININSKOE OTDEL VNI PK I GEOFIZICHESKIKH ISSLEDOVANIJ GEOLOGORAZVEDOCHNYKH SKVAZHIN
发明人
PUSTOV VALERIJ V,SU;SEMIKHINA SVETLANA P,SU
分类号
E21B23/06;E21B33/12;(IPC1-7):E21B23/06
主分类号
E21B23/06
代理机构
代理人
主权项
地址
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