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发明名称
MINE WORKING SUPPORTING METHOD
摘要
申请公布号
SU1168723(A1)
申请公布日期
1985.07.23
申请号
SU19843708945
申请日期
1984.02.28
申请人
BRUSS VNI PI GALURGII
发明人
VOLKOV BORIS A,SU;KALINICHENKO PETR I,SU;PETROVSKIJ BORIS I,SU;SOROKIN VIKTOR A,SU;LIVENSKIJ VLADIMIR S,SU;SMYCHNIK ANATOLIJ D,SU
分类号
E21D20/00;(IPC1-7):E21D20/00
主分类号
E21D20/00
代理机构
代理人
主权项
地址
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