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发明名称
EARPHONE
摘要
申请公布号
HK1196218(A2)
申请公布日期
2014.12.05
申请号
HK20140108809
申请日期
2014.08.29
申请人
馬恆達 號
发明人
馬恆達
分类号
H04R
主分类号
H04R
代理机构
代理人
主权项
地址
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