发明名称 Hearing protection
摘要 The present invention relates to an arrangement for preventing or at least reducing high acoustic pressure levels reaching the tympanic membrane of an ear. In particular, the present invention relates to an arrangement for preventing or at least reducing high acoustic pressure levels reaching the tympanic membrane of an ear by means of placing a protector in an external auditory canal of said ear. The ear protector comprises members for easily engaging or disengaging the ear protector.
申请公布号 US2005069145(A1) 申请公布日期 2005.03.31
申请号 US20040797598 申请日期 2004.03.11
申请人 SJOQVIST INGVAR 发明人 SJOQVIST INGVAR
分类号 A61F11/12;(IPC1-7):A61F11/06;H04R25/00 主分类号 A61F11/12
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