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发明名称
SAFETY DEVICE FOR DEEPENING VERTICAL MINE SHAFTS
摘要
申请公布号
SU672347(A1)
申请公布日期
1979.07.05
申请号
SU19772554653
申请日期
1977.12.14
申请人
KRIVOROZHSKIJ GORNORUDNYJ INSTITUT
发明人
ZADOROZHNYJ ALEKSEJ M,SU;SAKHNO OLEG G,SU;YAKOVENKO YURIJ N,SU
分类号
E21D7/00;(IPC1-7):E21D7/00
主分类号
E21D7/00
代理机构
代理人
主权项
地址
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