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经营范围
发明名称
SOUND OUTPUT SYSTEM
摘要
申请公布号
EP0409360(A3)
申请公布日期
1991.04.17
申请号
EP19900202324
申请日期
1988.12.08
申请人
CANON KABUSHIKI KAISHA
发明人
NEGISHI, HIROKAZU
分类号
H04R1/34;H04R5/02;H04S1/00;(IPC1-7):H04R5/02
主分类号
H04R1/34
代理机构
代理人
主权项
地址
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