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发明名称
PACKER
摘要
申请公布号
SU1070299(A1)
申请公布日期
1984.01.30
申请号
SU19823505694
申请日期
1982.10.28
申请人
PERMSKIJ POLT INSTITUT
发明人
MISHCHENKOV IVAN S,SU
分类号
E21B33/12;(IPC1-7):E21B33/12
主分类号
E21B33/12
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