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发明名称
CORE RECEPTACLE FISHING-OUT DEVICE
摘要
申请公布号
SU817205(A1)
申请公布日期
1981.03.30
申请号
SU19792744421
申请日期
1979.03.05
申请人
SP K BYURO V PROMYSHLENNOGO OBEDINENIYA "SOYUZGEOTEKHNIKA" MINISTERSTVA GEOLOGII SSSR
发明人
NIKANOROV ALEKSEJ M,SU;GOLUBITSKIJ VALERIJ A,SU;ZENKOV MIKHAIL D,SU
分类号
E21B25/00;(IPC1-7):E21B25/00
主分类号
E21B25/00
代理机构
代理人
主权项
地址
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