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发明名称
POWERED SUPPORTS OF STOPES
摘要
申请公布号
RU1828930(C)
申请公布日期
1993.07.23
申请号
SU19904819831
申请日期
1990.04.25
申请人
NAUCHNO-ISSLEDOVATELSKIJ GORNORUDNYJ INSTITUT
发明人
KOROLENKO VIKTOR G;CHERNENKO ALEKSANDR R;DOLGIJ VLADIMIR V
分类号
E21D23/00;E21D19/04
主分类号
E21D23/00
代理机构
代理人
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地址
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