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发明名称
An improved loudspeaker system
摘要
申请公布号
GB9520789(D0)
申请公布日期
1995.12.13
申请号
GB19950020789
申请日期
1995.10.13
申请人
HARWOOD, HUGH D
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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