Improvements in or relating to light modulating devices,申请号GB19370016098-传众专利搜索

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发明名称	Improvements in or relating to light modulating devices
摘要
申请公布号	GB492469(A)	申请公布日期	1938.09.21
申请号	GB19370016098	申请日期	1937.06.10
申请人	SCOPHONY LIMITED;JOHN HENRY JEFFREE;JOSHUA SIEGER	发明人
分类号	H04N5/66	主分类号	H04N5/66
代理机构		代理人
主权项
地址

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