Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signals,申请号GB19540024996-传众专利搜索

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发明名称	Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signals
摘要
申请公布号	GB788543(A)	申请公布日期	1958.01.02
申请号	GB19540024996	申请日期	1954.08.27
申请人	ARTHUR ASHLEY GRIFFIN	发明人
分类号	H04R3/14	主分类号	H04R3/14
代理机构		代理人
主权项
地址

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