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发明名称
ARRANGEMENT FOR RETAINING DRILL PIPES AND RODS
摘要
申请公布号
SU1221314(A1)
申请公布日期
1986.03.30
申请号
SU19843798645
申请日期
1984.10.05
申请人
GOMELSKOE SP KT BYURO SEJSMICHESKOJ TEKHNIKI S O PROIZVODSTVOM
发明人
SHAGINYAN ALBERT S,SU;ASAN-DZHALALOV ALEKSEJ G,SU;ANDROSENKO ALEKSANDR P,SU;RODIONOV VYACHESLAV I,SU
分类号
E21B19/10;(IPC1-7):E21B19/10
主分类号
E21B19/10
代理机构
代理人
主权项
地址
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