Application of a marginal or like screen to cinematograph films for influencing a photo-electric relay,申请号GB19370020439-传众专利搜索

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发明名称	Application of a marginal or like screen to cinematograph films for influencing a photo-electric relay
摘要
申请公布号	GB504808(A)	申请公布日期	1939.04.25
申请号	GB19370020439	申请日期	1937.07.23
申请人	LEON GARGANOF;LEON RIPERT;ROBERT DENIS	发明人
分类号	G03B31/00	主分类号	G03B31/00
代理机构		代理人
主权项
地址

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