Perfectionnements aux films cinématographiques sonores en couleurs naturelles,申请号FRD718577-传众专利搜索

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发明名称	Perfectionnements aux films cinématographiques sonores en couleurs naturelles
摘要
申请公布号	FR718577(A)	申请公布日期	1932.01.26
申请号	FRD718577	申请日期	1931.06.12
申请人	SPICERS LIMITED	发明人
分类号	G03C7/22	主分类号	G03C7/22
代理机构		代理人
主权项
地址

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