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发明名称
The headphone enlarging playing time of multimedia player
摘要
申请公布号
KR100904205(B1)
申请公布日期
2009.06.25
申请号
KR20070089771
申请日期
2007.09.05
申请人
发明人
分类号
H04R1/10;H04R3/00
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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