Talking motion picture apparatus,申请号GB19330013463-传众专利搜索

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发明名称	Talking motion picture apparatus
摘要
申请公布号	GB405498(A)	申请公布日期	1934.02.08
申请号	GB19330013463	申请日期	1933.05.09
申请人	RADIO CORPORATION OF AMERICA	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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