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ADJUSTABLE HEARING PROTECTION DEVICE
专利权人:
Arjen Teake De Jong
发明人:
Arjen Teake De Jong,Richard Vincent Armin De Jong
申请号:
US16342128
公开号:
US20190254877A1
申请日:
2017.10.16
申请国别(地区):
US
年份:
2019
代理人:
摘要:
The present invention relates to an adjustable hearing protection device for arranging in and/or on the ear, the hearing protection device including: a housing with an acoustic entrance opening, an insertion part for inserting into an auditory canal of the ear extending from the housing with an acoustic exit opening oriented toward the interior of the auditory canal, and adjusting means for adjusting the hearing protection device to one of at least two acoustic adjustment positions. Each acoustic adjustment position sets one of a number of acoustic couplings between the entrance opening and the exit opening.
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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