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发明名称
Piezoelectric speaker
摘要
申请公布号
EP0812124(A3)
申请公布日期
2003.04.16
申请号
EP19970401226
申请日期
1997.06.03
申请人
MURATA MANUFACTURING CO., LTD.
发明人
NAKAMURA, TAKESHI;HEINOUCHI, YOSHIAKI
分类号
H04R1/02;H04R7/00;H04R17/00;(IPC1-7):H04R17/00
主分类号
H04R1/02
代理机构
代理人
主权项
地址
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