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发明名称
DEVICE FOR REPAIRING CASINGS
摘要
申请公布号
SU899848(A1)
申请公布日期
1982.01.23
申请号
SU19802931738
申请日期
1980.05.28
申请人
VNII NEFTEPROMYSLOVOJ GEOFIZIKI
发明人
GUFRANOV MARAT G,SU;BUKIN IGOR I,SU;BROVIN BORIS Z,SU
分类号
E21B29/02;(IPC1-7):E21B29/02
主分类号
E21B29/02
代理机构
代理人
主权项
地址
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