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发明名称
Use of a hearing protection device with acoustic filter element
摘要
申请公布号
EP1795160(B1)
申请公布日期
2009.05.06
申请号
EP20050026730
申请日期
2005.12.07
申请人
PHONAK AG
发明人
OBERDANNER, HANNES
分类号
A61F11/08
主分类号
A61F11/08
代理机构
代理人
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