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发明名称
DEVICE FOR REMOVING DUST FROM HOLE IN COURSE OF THERMAL DRILLING
摘要
申请公布号
SU1113537(A1)
申请公布日期
1984.09.15
申请号
SU19833583782
申请日期
1983.04.16
申请人
NII PO PROBLEMAM KURSKOJ MAGNITNOJ ANOMALII IM.L.D.SHEVYAKOVA
发明人
VASILEV MIKHAIL G,SU;KLYUKA FEDOR I,SU;KOSTIN GERMAN P,SU;NERED NIKOLAJ T,SU;PISOTSKIJ ARTUR P,SU;SEDOCHENKO VLADIMIR V,SU;KHVOSTOV NIKOLAJ S,SU
分类号
E21B21/015;E21B7/14;(IPC1-7):E21C7/04
主分类号
E21B21/015
代理机构
代理人
主权项
地址
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