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发明名称
Piezoelectric electro-acoustic transducer
摘要
申请公布号
EP0822537(B1)
申请公布日期
2004.09.22
申请号
EP19970401795
申请日期
1997.07.25
申请人
MURATA MANUFACTURING CO., LTD.
发明人
YAMAMOTO, KAZUAKI;INAMI, HIROYUKI;SAITO, SHUHO
分类号
H04R17/10;G10K9/122;(IPC1-7):G10K9/122
主分类号
H04R17/10
代理机构
代理人
主权项
地址
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