| 发明名称 |
Fan housing assembly |
| 摘要 |
A fan housing assembly for an exhaust fan is provided with an orifice pan which can be securely but removably snapped in place to close an open face of the fan housing and provide a means of supporting a ventilating grille.
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| 申请公布号 |
US4073597(A) |
申请公布日期 |
1978.02.14 |
| 申请号 |
US19770763290 |
申请日期 |
1977.01.28 |
| 申请人 |
THE CELOTEX CORPORATION |
发明人 |
BARNHART, DAVID A.;LOFTIN, GORDY E. |
| 分类号 |
F04D29/64;(IPC1-7):F04D29/62;F24F13/08 |
主分类号 |
F04D29/64 |
| 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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