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发明名称
EARPHONE DEVICE
摘要
申请公布号
KR100231219(B1)
申请公布日期
1999.11.15
申请号
KR19917001122
申请日期
1991.09.16
申请人
SONY CORPORATION
发明人
INANAGA, KIYOFUMI;SOGAWA, HIROYUKI;IIDA, YASUHIRO;KIMURA, AKIRA
分类号
A61F11/08;G10K11/178;H04R1/10;(IPC1-7):H04R1/10
主分类号
A61F11/08
代理机构
代理人
主权项
地址
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