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发明名称
Dispositif régulateur d'écoulement d'air au travers des tuyères d'aspiration ou autres accessoires d'appareils nettoyeurs par le vide
摘要
申请公布号
FR848642(A)
申请公布日期
1939.11.03
申请号
FRD848642
申请日期
1939.01.10
申请人
AKTIEBOLAGET ELEKTROLUX
发明人
分类号
A47L9/00;A47L9/19
主分类号
A47L9/00
代理机构
代理人
主权项
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