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发明名称
SPEAKER
摘要
申请公布号
JPH04129500(A)
申请公布日期
1992.04.30
申请号
JP19900253141
申请日期
1990.09.20
申请人
SHARP CORP
发明人
HIRATA YASUO
分类号
H04R9/00
主分类号
H04R9/00
代理机构
代理人
主权项
地址
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