Improvements relating to electrical crossover filters,申请号GB19520012323-传众专利搜索

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发明名称	Improvements relating to electrical crossover filters
摘要
申请公布号	GB734346(A)	申请公布日期	1955.07.27
申请号	GB19520012323	申请日期	1952.08.15
申请人	TANNOY LIMITED;NORMAN HERBERT CROWHURST	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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