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发明名称
LOUDSPEAKER ATTACHMENT
摘要
申请公布号
GB9104376(D0)
申请公布日期
1991.04.17
申请号
GB19910004376
申请日期
1991.03.01
申请人
PHILLIPS, DAVID W;HENFREY, COLIN
发明人
分类号
H04R1/02;H04R1/28
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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