| 发明名称 |
Ear plugs and method of forming same |
| 摘要 |
A process for forming a foamed thermoplastic earplug, comprising the steps of extruding a foamed body of thermoplastic material; shaping the foamed thermoplastic material; and at least partially separating the resulting shaped material for forming individual earplugs.
|
| 申请公布号 |
US2005109349(A1) |
申请公布日期 |
2005.05.26 |
| 申请号 |
US20040024270 |
申请日期 |
2004.12.28 |
| 申请人 |
LIGON BROTHERS MANUFACTURING |
发明人 |
LIGON JAMES T.SR.;LEWIS JEFFREY C. |
| 分类号 |
B29C44/30;A61F11/08;B29C44/56;(IPC1-7):A61F11/00 |
主分类号 |
B29C44/30 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
