Projektionseinrichtung zur Erzeugung von Schrift und Bildern an den Wolken,申请号DED540571D-传众专利搜索

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发明名称	Projektionseinrichtung zur Erzeugung von Schrift und Bildern an den Wolken
摘要
申请公布号	DE540571(C)	申请公布日期	1931.12.21
申请号	DED540571D	申请日期	1930.07.27
申请人	PAUL MUELLER	发明人
分类号	G09F19/18	主分类号	G09F19/18
代理机构		代理人
主权项
地址

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