Sound film reproducing and picture projecting apparatus,申请号GB19330031706-传众专利搜索

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发明名称	Sound film reproducing and picture projecting apparatus
摘要
申请公布号	GB410689(A)	申请公布日期	1934.05.24
申请号	GB19330031706	申请日期	1933.11.14
申请人	DENES VON MIHALY	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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