Procédé de production d'un film sonore en couleurs,申请号FRD746426-传众专利搜索

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发明名称	Procédé de production d'un film sonore en couleurs
摘要
申请公布号	FR746426(A)	申请公布日期	1933.05.29
申请号	FRD746426	申请日期	1932.11.25
申请人		发明人	GASPAR BELA
分类号	G03C7/24	主分类号	G03C7/24
代理机构		代理人
主权项
地址

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