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发明名称
Procédé et installation pour accroître l'effet de refroidissement et le rendement d'utilisation de l'air comprimé dans l'exploitation des mines
摘要
申请公布号
FR1057148(A)
申请公布日期
1954.03.05
申请号
FRD1057148
申请日期
1952.04.04
申请人
GUTEHOFFNUNGSHU:TTE OBERHAUSEN AKTIENGESELLSCHAFT
发明人
分类号
E21F3/00
主分类号
E21F3/00
代理机构
代理人
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地址
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