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发明名称
General-purpose yoke of sprag of mine steel arch
摘要
申请公布号
CZ16452(U1)
申请公布日期
2006.06.14
申请号
CZ20060017363U
申请日期
2006.01.12
申请人
ACTRAD, S. R. O.
发明人
CISCON AUGUSTIN
分类号
E21D11/18;E21D11/28
主分类号
E21D11/18
代理机构
代理人
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地址
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