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经营范围
发明名称
Durch Luftströmung angetriebene Vorrichtung zur Ventilation von geschlossenen Räumen oder zur Verbesserung, bezw. Erhaltung eines Schornsteinzuges.
摘要
申请公布号
CH147730(A)
申请公布日期
1931.06.30
申请号
CHD147730
申请日期
1930.12.11
申请人
SAVONIUS,SIGURD J.
发明人
J. SAVONIUS,SIGURD
分类号
F04D25/04;F23L17/10
主分类号
F04D25/04
代理机构
代理人
主权项
地址
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