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发明名称
CASING SHOE
摘要
申请公布号
SU1714075(A1)
申请公布日期
1992.02.23
申请号
SU19894790861
申请日期
1989.12.04
申请人
TYUMENSKIJ INDUSTRIALNYJ I IM.LENINSKOGO KOMSOMOLA
发明人
PETROV NIKOLAJ A,SU;KUZNETSOV YURIJ S,SU;OVCHINNIKOV VASILIJ P,SU;SHENBERGER VLADIMIR M,SU
分类号
E21B17/14;E21B33/14
主分类号
E21B17/14
代理机构
代理人
主权项
地址
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