发明申请
US20080314393A1 Self-conforming sound attenuation earplug 有权
自适应声音衰减耳塞

Self-conforming sound attenuation earplug
摘要:
A self-conforming sound attenuation earplug, including: a stem, at least one support joined with the stem and extending radially outward from the stem, and a shell engaging the support and encircling the stem to form a space between the shell and the stem. At least one of the support material and the shell material is a deformable-resilient material.
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