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发明名称
A SPEAKER ASSEMBLY
摘要
申请公布号
GB9318471(D0)
申请公布日期
1993.10.20
申请号
GB19930018471
申请日期
1993.09.07
申请人
WALTERS FREDERICK J.
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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