00828nam a2200229Ia 450000100060000000300050000600500170001100800410002803500200006904000240008910000430011324500630015626000640021926500100028330000180029349000500031150400290036165000270039065000470041771000470046481000870051187535BIBL20160527204131.0790504s1979    dcu      b   f000 0 eng d  a(OCoLC)04929491  aDODcDODdm.c.dm/c10aLitton, C. D.q(Charles D.)wcn2Local10aFire detectors in underground minescby Charles D. Litton.0 a[Washington]bDept. of the Interior, Bureau of Minesc1979.  a20241  a11 p.c27 cm.1 aInformation circular - Bureau of Mines ; 8786  aIncludes bibliographies. 0aFire detectors.2Local 0aMine firesxPrevention and control.2Local10aUnited StatesbBureau of Mines.wcn2Local1 aUnited States.bBureau of Mines.tInformation circular -Bureau of Minesv8786.wcn