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发明名称
Выемочный столб
摘要
申请公布号
RU35655(U1)
申请公布日期
2004.01.27
申请号
RU20030130185U
申请日期
2003.10.13
申请人
发明人
分类号
E21C41/00
主分类号
E21C41/00
代理机构
代理人
主权项
地址
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