Light modulating device,申请号US19350008451-传众专利搜索

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发明名称	Light modulating device
摘要
申请公布号	US2155659(A)	申请公布日期	1939.04.25
申请号	US19350008451	申请日期	1935.02.27
申请人	SCOPHONY LIMITED	发明人	JEFFREE JOHN HENRY
分类号	H04N3/10;H04N5/66	主分类号	H04N3/10
代理机构		代理人
主权项
地址

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