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发明名称
Procédé pour exécuter des segments pour le soutènement des galeries de mines.
摘要
申请公布号
BE583465(A1)
申请公布日期
1960.02.01
申请号
BE19590583465
申请日期
1959.10.09
申请人
RHEIMSTAHL WAMHEIM G.M.B.H.
发明人
分类号
(IPC1-7):E21D
主分类号
(IPC1-7):E21D
代理机构
代理人
主权项
地址
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