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经营范围
发明名称
Supporting structure of supports of branches and crossings of mine galleries
摘要
申请公布号
CZ8785(U1)
申请公布日期
1999.08.11
申请号
CZ19990009019U
申请日期
1999.02.16
申请人
VVUU, A.S.
发明人
MICANEK JIRI ING.
分类号
E21D11/18;E21D11/24;(IPC1-7):E21D011/18;E21D011/24
主分类号
E21D11/18
代理机构
代理人
主权项
地址
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