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发明名称
CONTACT MICROPHONE
摘要
申请公布号
EP0334219(A3)
申请公布日期
1991.04.03
申请号
EP19890104754
申请日期
1989.03.16
申请人
M-P & SD DI-PARISI EUGENIO MARKETING PROMOTION & SYSTEMS DEVELOPMENT
发明人
PARISI, EUGENIO
分类号
H04R1/46;(IPC1-7):H04R1/46
主分类号
H04R1/46
代理机构
代理人
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