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发明名称
Perfectionnements aux ventilateurs d'aérage des mines
摘要
申请公布号
FR998558(A)
申请公布日期
1952.01.21
申请号
FRD998558
申请日期
1945.10.29
申请人
ETABLISSEMENTS FOURNIER ET MOUILLON
发明人
分类号
F04D25/02;F04D29/52
主分类号
F04D25/02
代理机构
代理人
主权项
地址
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