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Hearing protection
专利权人:
Elin Karrman
发明人:
Elin Karrman
申请号:
US11915098
公开号:
US08534290B2
申请日:
2006.05.24
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A hearing protection unit includes two sound damping cups for placing around a users ears. A retainer device positions the cups and applies a compressive force on the cups. The retainer device includes a front band which extends between the front edge of each respective cup across the users forehead, and a rear band which extends between the rear edge of each respective cup around the nape region of the user.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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