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发明名称
ACOUSTIC DEVICE AND CONVERSATION DEVICE
摘要
申请公布号
KR100880776(B1)
申请公布日期
2009.02.02
申请号
KR20077019919
申请日期
2007.08.31
申请人
发明人
分类号
H04R3/00;H04R3/02
主分类号
H04R3/00
代理机构
代理人
主权项
地址
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