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发明名称
SPEAKER
摘要
申请公布号
JPH0385900(A)
申请公布日期
1991.04.11
申请号
JP19890222013
申请日期
1989.08.29
申请人
SONY CORP
发明人
MAEDA KEIJIRO;TOMIYAKE NOBUO
分类号
H04R7/20
主分类号
H04R7/20
代理机构
代理人
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地址
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