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发明名称
Perfectionnements aux installations de ventilateurs axiaux, notamment pour l'aération des mines
摘要
申请公布号
FR1009308(A)
申请公布日期
1952.05.28
申请号
FRD1009308
申请日期
1948.06.04
申请人
SOCIETE RATEAU
发明人
分类号
F04D29/54
主分类号
F04D29/54
代理机构
代理人
主权项
地址
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