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Effect of ultralow frequency signaling on blasting array current [microform] / by Kenneth E. Hjelmstad and Russell E. Griffin (Report of investigations ; 9479)

Effect of ultralow frequency signaling on blasting array current [microform] / by Kenneth E. Hjelmstad and Russell E. Griffin (Report of investigations ; 9479)
Microform図書
1993<YCA-I 28.23:9479>
National Diet Library
  • Author HeadingHjelmstad, Kenneth E Griffin, Russell E United States. Bureau of Mine...

Rapid response pneumatic fire detection for multilevel metal mines microform : system design and in-mine testing / by W.H. Pomroy, R.E. Griffin, and M.A. Ackerson (Report of investigations ; 9305)

Rapid response pneumatic fire detection for multilevel metal mines microform : system design and in-mine testing / by W.H. Pomroy, R.E. Griffin, and M.A. Ackerson (Report of investigations ; 9305)
Microform図書
1991<YCA-I 28.23:9305>
National Diet Library
  • Author HeadingPomroy, William H Griffin, Russell E Ackerson, M. A. (Mark A.) Uni...

Anticollision systems for large mine-haulage trucks / by Russell E. Griffin (Report of investigations ; 9212)

Anticollision systems for large mine-haulage trucks / by Russell E. Griffin (Report of investigations ; 9212)
Microform図書
1988<YCA-I 28.23:9212>
National Diet Library
  • Author HeadingGriffin, Russell E United States. Bureau of Mine...

Improved backup alarm technology for mobile mining equipment / by Guy A. Johnson, Russell E. Griffin, and Linneas W. Laage (Information circular ; 9079)

Improved backup alarm technology for mobile mining equipment / by Guy A. Johnson, Russell E. Griffin, and Linneas W. Laage (Information circular ; 9079)
Microform図書
1986<YCA-I 28.27:9079>
National Diet Library
  • Author HeadingJohnson, Guy A Griffin, Russell E Laage, Linneas W United State...

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