Selective antinoise hearing device,申请号IT1992FI00093-传众专利搜索

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发明名称	Selective antinoise hearing device
摘要
申请公布号	IT1259648(B)	申请公布日期	1996.03.25
申请号	IT1992FI00093	申请日期	1992.04.21
申请人	D.D. S.R.L.	发明人
分类号	G10K;(IPC1-7):G10K	主分类号	G10K
代理机构		代理人
主权项
地址

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