- Author
- Schutz, R. H. | Ferber, B. I. | Kloos, E. J.
- Title
- Respiratory Protective Devices Approved by the Bureau of Mines as of October 1, 1965.
- Coporate
- Bureau of Mines, Pittsburgh, PA
- Report
- IC 8281, 1966, 25 p.
- Keywords
- respirators | protective clothing | safety | breathing apparatus
- Identifiers
- mining engineering