Dispositif d'éclairement pour films sonores,申请号FRD842233-传众专利搜索

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发明名称	Dispositif d'éclairement pour films sonores
摘要
申请公布号	FR842233(A)	申请公布日期	1939.06.08
申请号	FRD842233	申请日期	1938.08.17
申请人	KLANGFILM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG	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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