• publisher: Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines
  • creator: Kovalchik, Peter G
  • Keyword: Fuse wire arc tester. Mine explosions. Electric insulators and insulation Testing. Electricity in mining Safety measures.
  • years: 1987.
  • pages: [4], 9 p. :
  • class: TN295 TN343
  • download: pdf file