- Author
- Divers, E. F. | LaScola, J. C. | Kissell, F. N.
- Title
- Sideboard Device for Improved Face Ventilation in Coal Mines.
- Coporate
- Bureau of Mines, Pittsburg, PA
- Report
- Technical Progress Report 108, August 1979, 12 p.
- Keywords
- coal mines | ventilation | face masks | tests