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经营范围
发明名称
ELECTROACOUSTIC TRANSDUCER.
摘要
申请公布号
EP0667093(A1)
申请公布日期
1995.08.16
申请号
EP19930923007
申请日期
1993.10.15
申请人
KNOWLES ELECTRONICS COMPANY
发明人
SALVAGE, RICHARD, JAMES;HARRINGTON, STEVEN, JOHN
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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