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发明名称
Nut of yieldable arch coupling
摘要
申请公布号
CZ21696(U1)
申请公布日期
2011.02.09
申请号
CZ20100023499U
申请日期
2010.11.23
申请人
ACTRAD, S. R. O.
发明人
CISCON AUGUSTIN
分类号
E21D21/00;E21D7/00;E21D17/00;E21D20/00
主分类号
E21D21/00
代理机构
代理人
主权项
地址
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