Method of making talking motion pictures,申请号GB19290023847-传众专利搜索

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发明名称	Method of making talking motion pictures
摘要
申请公布号	GB337730(A)	申请公布日期	1930.11.03
申请号	GB19290023847	申请日期	1929.08.02
申请人	NAT RUGBY CORDISH	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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