Hamer, Jeffrey L.,Teeters, Kenneth F.,Thomas, Ravi
申请号：
AU2014216691
公开号：
AU2014216691A1
申请日:
2014.01.30
申请国别(地区):
AU
年份:
2015
代理人:
摘要：
Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein.
