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经营范围
发明名称
AUGER-DRILLING MACHINE
摘要
申请公布号
SU933975(A1)
申请公布日期
1982.06.07
申请号
SU19802991185
申请日期
1980.10.10
申请人
DO NI UGOLNYJ INSTITUT
发明人
LEVKOVICH PAVEL E,SU;SAVICH NIKOLAJ S,SU;BRATISHCHEVA LIDIYA L,SU;KRUTILIN VLADIMIR I,SU;KISELEV EVGENIJ I,SU;TVEREZYJ YURIJ F,SU;BOLOTOV NIKOLAJ L,SU
分类号
E21B3/00;E21C27/22;(IPC1-7):E21C1/00
主分类号
E21B3/00
代理机构
代理人
主权项
地址
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