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发明名称
Einrichtung zur Verhinderung des Funkenfluges aus Schornsteinen.
摘要
申请公布号
AT153551(B)
申请公布日期
1938.06.10
申请号
ATD153551
申请日期
1937.03.05
申请人
JOSEF HOFMANN
发明人
JOSEF HOFMANN
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主分类号
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