A music learning aid,申请号GB19940024393-传众专利搜索

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发明名称	A music learning aid
摘要
申请公布号	GB9424393(D0)	申请公布日期	1995.02.15
申请号	GB19940024393	申请日期	1993.06.03
申请人	HESNAN, JOHN	发明人
分类号	G09B15/00;G09B15/02	主分类号	G09B15/00
代理机构		代理人
主权项
地址

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