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发明名称
AN ELECTROACOUSTIC TRANSDUCER AND A DIAPHRAGM FOR AN ELECTROACOUSTIC TRANSDUCER
摘要
申请公布号
EP0976301(B1)
申请公布日期
2004.05.12
申请号
EP19990901803
申请日期
1999.02.04
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人
FRASL, EWALD;KLEIN, ERICH
分类号
H04R7/12;H04R7/20;H04R9/02;(IPC1-7):H04R9/02
主分类号
H04R7/12
代理机构
代理人
主权项
地址
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