• publisher: [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines
  • creator: Litton, C. D. (Charles D.)
  • Keyword: Mine ventilation Equipment and supplies. Mine safety Equipment and supplies. Pneumatic control.
  • years: 1983.
  • pages: 23 p. :
  • class: TN295 TN301
  • download: pdf file