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经营范围
发明名称
POWERED MINE ROOF SUPPORT
摘要
申请公布号
SU1682561(A1)
申请公布日期
1991.10.07
申请号
SU19894771844
申请日期
1989.11.14
申请人
N-PROIZV OB PO DOBYCHE UGLYA GIDRAVLICHESKIM SPOSOBOM "PROKOPEVSKGIDROUGOL"
发明人
NAJDOV MIKHAIL I,SU;ERPYLEV VIKTOR M,SU;ZAKHAROV GENNADIJ M,SU;POPERECHNEV NIKOLAJ I,SU;GONILOV BORIS G,SU
分类号
E21C41/16
主分类号
E21C41/16
代理机构
代理人
主权项
地址
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