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发明名称
INVENTORY MINE ROOF SUPPORT
摘要
申请公布号
SU829960(A1)
申请公布日期
1981.05.15
申请号
SU19792791868
申请日期
1979.07.05
申请人
TULSKIJ POLT INSTITUT
发明人
MOSKVIN YURIJ K,SU
分类号
E21D5/06;(IPC1-7):E21D5/06
主分类号
E21D5/06
代理机构
代理人
主权项
地址
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