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发明名称
Sound output device
摘要
申请公布号
GB2248997(B)
申请公布日期
1995.03.01
申请号
GB19910011775
申请日期
1991.05.31
申请人
* CANON RESEARCH CENTRE EUROPE LTD
发明人
HIRO * NEGISHI;MICHAEL DAVID GRAHAM * JEWITT
分类号
H04R1/24;H04R1/26;H04R1/28;H04R1/34;H04R7/12;(IPC1-7):H04R1/34
主分类号
H04R1/24
代理机构
代理人
主权项
地址
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