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经营范围
发明名称
Perfectionnement à la marche des ventilateurs en installations frigorifiques
摘要
申请公布号
FR1033263(A)
申请公布日期
1953.07.09
申请号
FRD1033263
申请日期
1951.03.01
申请人
发明人
RAVEL JEAN-ALBERT
分类号
F25B49/02
主分类号
F25B49/02
代理机构
代理人
主权项
地址
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