Concha-fit electronic hearing protection device
- 专利权人:
- 发明人:
- Paul D. Henry,Michael J. Pescetto
- 申请号：
- US14082670
- 公开号：
- US09479859B2
- 申请日:
- 2013.11.18
- 申请国别(地区):
- US
- 年份:
- 2016
- 代理人:
- 摘要：
- A concha-fit electronic hearing protection device including an eartip and an earpiece body. When the device is fitted in the ear of a user, the eartip externally occludes the ear canal and the earpiece body internally occludes the eartip.
- 来源网站：
- 中国工程科技知识中心
