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Some phases of coal-mine ventilation
| Author: | Forbes, John J. V. |
|---|---|
| Additional Authors: | Ankeny, M. J. |
| Year: | 1929 |
| Document Type: | MAIN |
| SUDOC: | C 22.11:6126 |
| Series: | Information circular / United States Department of Commerce, Bureau of Mines ; |
| Report Number: | 6126 |
| Subject: | Mine ventilation--Equipment and supplies--Safety measures |
| Link: | https://hdl.handle.net/2027/mdp.39015095078385 |
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