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发明名称
APPARATUS FOR DRIVING MINE WORKINGS BY DRILLING
摘要
申请公布号
SU840371(A1)
申请公布日期
1981.06.23
申请号
SU19792817498
申请日期
1979.09.04
申请人
KY I TSVETNYKH METALLOV IM. M.I.KALININA
发明人
LAGER ALEKSANDR I,SU;SHUTIJ NIKOLAJ I,SU;SHUTIJ IRINA N,SU
分类号
E21D9/10;(IPC1-7):E21D9/10
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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