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经营范围
发明名称
Electroacoustic transducer
摘要
申请公布号
EP0784415(B1)
申请公布日期
2002.05.08
申请号
EP19970103200
申请日期
1993.10.15
申请人
KNOWLES ELECTRONICS, LLC
发明人
SALVAGE, RICHARD JAMES;HARRINGTON, STEVEN JOHN, DR.
分类号
H04R11/00;H04R11/02;H04R25/00;(IPC1-7):H04R11/00
主分类号
H04R11/00
代理机构
代理人
主权项
地址
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