AUDIO FREQUENCY TESTING SYSTEM,申请号GB19920015446-传众专利搜索

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发明名称	AUDIO FREQUENCY TESTING SYSTEM
摘要
申请公布号	GB9215446(D0)	申请公布日期	1992.09.02
申请号	GB19920015446	申请日期	1992.07.21
申请人	SPURGEON, PETER J C	发明人
分类号	G09B19/04;G09B21/00;G10L19/00;G10L21/06	主分类号	G09B19/04
代理机构		代理人
主权项
地址

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