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发明名称
HEADPHONE DEVICE
摘要
申请公布号
JPH0955991(A)
申请公布日期
1997.02.25
申请号
JP19950209679
申请日期
1995.08.17
申请人
SONY CORP
发明人
ITO MASAHIKO
分类号
H04R1/10;H04R5/033;(IPC1-7):H04R1/10
主分类号
H04R1/10
代理机构
代理人
主权项
地址
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