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经营范围
发明名称
Miniature transducer
摘要
申请公布号
GB9905081(D0)
申请公布日期
1999.04.28
申请号
GB19990005081
申请日期
1999.03.08
申请人
KNOWLES ELECTRONICS INC
发明人
分类号
H04R11/02;H04R25/00
主分类号
H04R11/02
代理机构
代理人
主权项
地址
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