| Author: | Litton, C. D. |
|---|---|
| Year: | 1983 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:8912 |
| Series: | Information circular / U.S. Bureau of Mines ; |
| Report Number: | 8912 |
| Subjects: | Mine safety--Equipment and supplies |
| Mine ventilation--Equipment and supplies | |
| Pneumatic control | |
| Link: | https://hdl.handle.net/2027/mdp.39015078460469 |