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发明名称
SPEAKER DEVICE
摘要
申请公布号
JPH0955990(A)
申请公布日期
1997.02.25
申请号
JP19950207949
申请日期
1995.08.15
申请人
NEC SHIZUOKA LTD
发明人
MASE KATSUYOSHI
分类号
H04N5/64;H04R1/02;H04R1/32;H04R5/02;(IPC1-7):H04R1/02
主分类号
H04N5/64
代理机构
代理人
主权项
地址
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