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发明名称
SPEAKER DEVICE
摘要
申请公布号
JPH05130690(A)
申请公布日期
1993.05.25
申请号
JP19910321193
申请日期
1991.11.08
申请人
SONY CORP
发明人
YAMAGISHI AKIRA;KAGAWA YUTAKA
分类号
H04R1/02;H04R1/26;H04R1/28
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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