אטמי–אוזניים הנדחפים פנימה

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专利权人:

3M INNOVATIVE PROPERTIES COMPANY

发明人:

申请号：

IL23662315

公开号：

IL236623D0

申请日:

2015.01.11

申请国别(地区):

IL

年份:

2015

代理人:

摘要：

An earplug (100) including an elongate core (110) and outer layer (120) is disclosed. The elongate core (110) comprises a first material and has first and second ends (111, 112) and an outer major surface. The outer layer (120) comprises a second material and covers at least a portion of the outer major surface of the elongate core (110). The second material comprises thermoplastic spheres

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/