PRZESUNIĘTY TRZON ZATYCZKI DO UCHA ORAZ ZATYCZKA Z NIM UFORMOWANA
- 专利权人:
- 3M Innovative Properties Company
- 发明人:
- FALCO, ROBERT N.
- 申请号:
- PL06827150
- 公开号:
- PL1948105T3
- 申请日:
- 2006.10.31
- 申请国别(地区):
- PL
- 年份:
- 2020
- 代理人:
- 摘要:
- A hearing protection device (250) is provided including a sound attenuating element (52) and a stem (252) extending from the sound attenuating element, wherein the stem comprises multiple curved segments.
- 来源网站:
- 中国工程科技知识中心