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

Keyword Search

Some studies on emergency mine communications

Protection against lightning at surface and underground mining plants

Published Year

• 1940-1949 (2) *

Subject

• Lightning protection (1)
• Mine communication systems (1)
• Mine safety (1)
• Mine safety--Equipment and supplies (1)
• Radio in mining (1)

Author

• Harrison, L. H. (2) *
• Coggeshall, E. J. (1)
• Felegy, E. W. (1)
• Harrington, D. (1) *
• Parker, D. J. (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

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