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发明名称
ELECTROMAGNETIC TRANSDUCER
摘要
申请公布号
PL295717(A1)
申请公布日期
1993.04.19
申请号
PL19920295717
申请日期
1992.08.24
申请人
NOKIA DEUTSCHLAND GMBH
发明人
KREITMEIER LEONHARD
分类号
H04R9/02;H04R9/04;H04R9/06;(IPC1-7):H04R9/06
主分类号
H04R9/02
代理机构
代理人
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