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经营范围
发明名称
DYNAMIC LOUDSPEAKER
摘要
申请公布号
PL260886(A2)
申请公布日期
1987.06.29
申请号
PL19860260886
申请日期
1986.07.31
申请人
发明人
分类号
H04R;(IPC1-7):H04R/
主分类号
H04R
代理机构
代理人
主权项
地址
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