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发明名称
Panel speaker
摘要
申请公布号
GB0014170(D0)
申请公布日期
2000.08.02
申请号
GB20000014170
申请日期
2000.06.09
申请人
NEC CORPORATION
发明人
分类号
H04R1/00;H04R1/02;H04R7/04
主分类号
H04R1/00
代理机构
代理人
主权项
地址
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