01262nam 2200325Ka 450 991069640730332120080403150447.0(CKB)5470000002378773(OCoLC)218503516(EXLCZ)99547000000237877320080403d1998 ua 0engtxtrdacontentcrdamediacrrdacarrierA passive means to detect hot trolley insulators[electronic resource][Pittsburgh, PA] :U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health,[1998]2 unnumbered pages digital, PDF fileTechnology news ;no. 474Title from title screen (viewed on Mar. 10, 2008)."August 1998."Coal mines and miningUnited StatesMethodologyCoal mines and miningMethodology.Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)GPOGPOBOOK9910696407303321A passive means to detect hot trolley insulators3510368UNINA