| 发明名称 |
Exhaust vent filter |
| 摘要 |
A stack of filters mounted on a relief vent mounted in a retaining collar, the retaining collar mounted in a hood on a stack pipe attached to an exhaust vent in order to filter the exhaust gases entering the atmosphere.
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| 申请公布号 |
US4026688(A) |
申请公布日期 |
1977.05.31 |
| 申请号 |
US19760692679 |
申请日期 |
1976.06.04 |
| 申请人 |
THE RAYMOND LEE ORGANIZATION, INC. |
发明人 |
PATTERSON, RAY |
| 分类号 |
B01D46/12;F01N3/08;(IPC1-7):B01D46/42 |
主分类号 |
B01D46/12 |
| 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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