Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Respiratory protective devices approved by the Bureau of Mines as of October 16, 1958

Published Year

• 1950-1959 (1) *

Subject

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

Author

• Kloos, E. J. (1) *
• Pierce, S. J. (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010