| 发明名称 |
Ventilation chimney for closed rooms and containers has on inside a protective insect screen matching entire internal cross-section of chimney to keep out small animals and insects |
| 摘要 |
<p>The chimney has on the inside a protective insect screen whose free overall cross-section corresponds exactly to 100 percent of the chimney cross-section. The screen can have a cylindrical, spherical or conical shape.</p> |
| 申请公布号 |
DE202004011573(U1) |
申请公布日期 |
2004.10.14 |
| 申请号 |
DE20042011573U |
申请日期 |
2004.07.23 |
| 申请人 |
ENGELHARDT, HORST;ENGELHARDT, RUEDIGER |
发明人 |
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| 分类号 |
E04F17/04;F24F7/02;(IPC1-7):E04F17/04;F24F7/00;F24F13/00 |
主分类号 |
E04F17/04 |
| 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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