Improvements in or relating to light modulating screens,申请号GB19500013836-传众专利搜索

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发明名称	Improvements in or relating to light modulating screens
摘要
申请公布号	GB720532(A)	申请公布日期	1954.12.22
申请号	GB19500013836	申请日期	1950.06.02
申请人	COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ	发明人
分类号	H04N5/74	主分类号	H04N5/74
代理机构		代理人
主权项
地址

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