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发明名称
Procédé et installation pour la climatisation des points chauds d'exploitation dans les mines ou tunnels
摘要
申请公布号
FR1049258(A)
申请公布日期
1953.12.29
申请号
FRD1049258
申请日期
1951.01.19
申请人
RUHRSTAHL AKTIENGESELLSCHAFT
发明人
分类号
E21F3/00
主分类号
E21F3/00
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代理人
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