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发明名称
Headphone with surround-sound effect
摘要
申请公布号
EP1542502(A3)
申请公布日期
2009.04.22
申请号
EP20040029072
申请日期
2004.12.08
申请人
ULTRASONE AG
发明人
KOENIG, FLORIAN M.
分类号
H04S3/00;H04R5/033;H04S5/00
主分类号
H04S3/00
代理机构
代理人
主权项
地址
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