Ventilation of manholes. I, Effect of holes in covers on natural ventilation / by G.W. Jones and others]
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| Other title: | Effect of holes in covers on natural ventilation. |
| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
United States Bureau of Mines,
1936.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
3307. |
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| Physical Description: | 5 pages : illustrations ; 27 cm. |
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