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发明名称
GUIDING ARRANGEMENT FOR DRILLING ROD
摘要
申请公布号
SU1139838(A1)
申请公布日期
1985.02.15
申请号
SU19833654742
申请日期
1983.07.15
申请人
VNII BEZOPASNOSTI TRUDA V GORNORUDNOJ PROMYSHLENNOSTI
发明人
ZHIVOTOVSKIJ ANATOLIJ A,SU;SNIZHKO ALEKSEJ P,SU;LOGVINENKO VALENTINA N,SU
分类号
E21B19/24;(IPC1-7):E21C9/00
主分类号
E21B19/24
代理机构
代理人
主权项
地址
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