01142cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035002000092040004800112050002500160110003800185245022600223260004800449300003100497440007100528490002300599500014000622650002500762710003600787710004800823999001700871l  31000153 DLC20260227111533.0910920s1931    dcuf         f000 0 eng c  al  31000153   a(OCoLC)24425278  aU.S. Dept. of Labor. LibrarycCLUdCLUdDLC10aHD8051b.A62 no. 5562 aIlluminating Engineering Society.10aCode of lighting: factories, mills and other work places.cRevision of 1930. American standard, approved by the American Standards Association, August 18, 1930. Sponsor, Illuminating Engineering Society ... October, 1931.  aWashington,bU.S. Govt. Print. Off.,c1931.  avi, 22 p.bplates.c24 cm. 0aBulletin of the United States Bureau of Labor Statistics,vno. 5560 aSafety code series  aAt head of title: United States Department of Labor. W.N. Doak, secretary. Bureau of Labor Statistics. Ethelbert Stewart, commissioner. 0aFactoriesxLighting.2 aAmerican Standards Association.1 aUnited States.bBureau of Labor Statistics.  c36034d36034