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Keeping them up in the air safely

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1001 ‎$0‎MAPA20080137946‎$a‎Lahey, James W.
24510‎$a‎Keeping them up in the air safely‎$c‎by James Lahey
520  ‎$a‎Ladders and scaffolds are basic to plant maintenance. All should conform to appropriate safety code provisions. This article treats: when selecting one of the three types of ladders (wood, reinforced plastic, or metal); the safe use of ladders first calls for two types of inspection; maintaining ladders is a safe practice; scaffolds and scaffolding; mobile tubular scaffolds, both frame and folding sectional
65011‎$0‎MAPA20080629724‎$a‎Seguridad e higiene en el trabajo
65011‎$0‎MAPA20080599744‎$a‎Accidentes de trabajo
65011‎$0‎MAPA20080614942‎$a‎Prevención de accidentes
65011‎$0‎MAPA20080550677‎$a‎Escaleras
65011‎$0‎MAPA20080580353‎$a‎Escaleras móviles
65011‎$0‎MAPA20080566326‎$a‎Mantenimiento
7400 ‎$a‎National safety news
7730 ‎$t‎National safety news‎$d‎Chicago‎$g‎Vol. 127, nº 2, February 1983 ; p. 32-35