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经营范围
发明名称
DRILLING MACHINE
摘要
申请公布号
SU1222832(A1)
申请公布日期
1986.04.07
申请号
SU19843803776
申请日期
1984.10.18
申请人
VNI PK UGOLNYJ I (KUZNIUI)
发明人
BELAN NIKOLAJ A,SU;MEDVEDEV VIKTOR I,SU;ELKIN EVGENIJ A,SU;LYSENKO RUDOLF P,SU;SHILOV VIKTOR A,SU;VOROBEV IVAN G,SU;BABANOV ALEKSANDR P,SU
分类号
E21B6/04;E21B3/00;E21B44/02;(IPC1-7):E21C1/12;E21C3/20;E21C5/16
主分类号
E21B6/04
代理机构
代理人
主权项
地址
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