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经营范围
发明名称
Headphone device
摘要
A headphone device including a driver unit, and an ear-hook hanger of a loop shape that is integrated with the driver unit and supports an entire circumference of an ear capsule is provided.
申请公布号
EP2028874(A1)
申请公布日期
2009.02.25
申请号
EP20080252551
申请日期
2008.07.25
申请人
SONY CORPORATION
发明人
FUJIWARA, KEITARO;MUROZAKI, KATSUNORI
分类号
H04R1/10
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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