| 发明名称 |
Breathing mask, especially a half mask or a full mask provided with an inner mask |
| 摘要 |
A gas mask, especially a half mask or a full mask provided with an inner mask, and having protective glasses or spectacles and means for attaching them to the half mask or directly to the inner mask.
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| 申请公布号 |
US4057057(A) |
申请公布日期 |
1977.11.08 |
| 申请号 |
US19750615822 |
申请日期 |
1975.09.22 |
| 申请人 |
KEMIRA OY |
发明人 |
BACKLUND, SIGURD ALFONS |
| 分类号 |
A62B18/08;(IPC1-7):A62B7/00 |
主分类号 |
A62B18/08 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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