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发明名称
SPEAKER
摘要
申请公布号
JPH0344295(A)
申请公布日期
1991.02.26
申请号
JP19890179654
申请日期
1989.07.12
申请人
SONY CORP
发明人
MAEDA KEIJIRO
分类号
H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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