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发明名称
Speaker device having metronome function
摘要
申请公布号
KR200471364(Y1)
申请公布日期
2014.02.19
申请号
KR20120005984U
申请日期
2012.07.09
申请人
发明人
分类号
G04F5/02;H04R1/00
主分类号
G04F5/02
代理机构
代理人
主权项
地址
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