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发明名称
Soutènement de galerie pour exploitations minières
摘要
申请公布号
FR1246570(A)
申请公布日期
1960.11.18
申请号
FR19600816907
申请日期
1960.01.28
申请人
RHEINSTAHL WANHEIM G. M. B. H.
发明人
分类号
E21D11/00;E21D11/18
主分类号
E21D11/00
代理机构
代理人
主权项
地址
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