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发明名称
APPARATUS FOR SCREWING AND UNSCREWING PIPES
摘要
申请公布号
SU1234575(A1)
申请公布日期
1986.05.30
申请号
SU19843818368
申请日期
1984.12.04
申请人
GOMELSKOE SP KT BYURO SEJSMICHESKOJ TEKHNIKI S O PROIZVODSTVOM
发明人
PEVNEV ANATOLIJ A,SU;SUVOROV ALEKSANDR V,SU;IVANKOV ALEKSANDR N,SU;ANTONETS ELENA K,SU
分类号
E21B19/16;(IPC1-7):E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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