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发明名称
Verfahren und Einrichtung zur Erzeugung von Wolken zu Signal- und Reklamezwecken, insbesondere zur Signalgebung und Reklameschrift vermittelst Flugzeugen.
摘要
申请公布号
CH139034(A)
申请公布日期
1930.03.31
申请号
CHD139034
申请日期
1927.08.11
申请人
DEUTSCHE BANK FILIALE DUESSELDORF
发明人
DUESSELDORF DEUTSCHE BANK FILIALE
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主分类号
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