VOICE AMPLIFIER ATTACHING TO AN EAR,申请号KR20130004017U-传众专利搜索

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发明名称	VOICE AMPLIFIER ATTACHING TO AN EAR
摘要
申请公布号	KR200473072(Y1)	申请公布日期	2014.06.12
申请号	KR20130004017U	申请日期	2013.05.22
申请人		发明人
分类号	H04R1/10	主分类号	H04R1/10
代理机构		代理人
主权项
地址

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