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发明名称
Headphone.
摘要
<p>A headphone in which a housing (10) containing a drive unit (20) is provided with a window hole (28) formed therein and the window hole (28) is covered with a diaphragm (30) providing acoustic transmissibility therethrough. <IMAGE></p>
申请公布号
EP0589623(A2)
申请公布日期
1994.03.30
申请号
EP19930307309
申请日期
1993.09.16
申请人
SONY CORPORATION
发明人
NAGENO, KOJI
分类号
H04R1/10;H04R5/033;(IPC1-7):H04R5/033;H04R1/22
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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