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

Keyword Search

Ultra low frequency electromagnetic fire alarm system for underground mines

Published Year

• 1990-1999 (1)

Subject

• ELF electromagnetic fields (1)
• Fire alarms (1)
• Mine fires--Prevention and control (1) *

Author

• Hjelmstad, Kenneth E. (1) *
• Pomroy, William H. (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

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