Improvements in or relating to electro-acoustical apparatus,申请号GB19600035326-传众专利搜索

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发明名称	Improvements in or relating to electro-acoustical apparatus
摘要
申请公布号	GB969000(A)	申请公布日期	1964.09.09
申请号	GB19600035326	申请日期	1960.10.14
申请人	ELECTRO-VOICE, INCORPORATED	发明人
分类号	H04R1/34	主分类号	H04R1/34
代理机构		代理人
主权项
地址

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