Improvements in sound reproducing devices for cinematographic films and the like,申请号GB19460005867-传众专利搜索

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发明名称	Improvements in sound reproducing devices for cinematographic films and the like
摘要
申请公布号	GB606709(A)	申请公布日期	1948.08.18
申请号	GB19460005867	申请日期	1946.02.25
申请人	ETABLISSEMENTS HEURTIER & CIE	发明人
分类号	G03B31/02	主分类号	G03B31/02
代理机构		代理人
主权项
地址

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