Appareil de modulation de la lumière,申请号FRD852559-传众专利搜索

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发明名称	Appareil de modulation de la lumière
摘要
申请公布号	FR852559(A)	申请公布日期	1940.02.27
申请号	FRD852559	申请日期	1939.04.03
申请人	I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT	发明人
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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