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Respiratory protective devices approved by the Bureau of Mines as of October 1, 1965

Instruments for detecting gas in underground mines and tunnels

Published Year

• 1960-1969 (1)
• 1970-1979 (1)

Subject

• Breathing apparatus (1)
• Mine gases (1)
• Mine safety (1)

Author

• Ferber, B. I. (2) *
• Kloos, E. J. (1)
• Schutz, Robert H. (1)
• Wieser, A. H. (1)

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