00732cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004200111042001200153050001600165082001000181110003200191245007400223260001900297300002100316500005000337650004400387650002700431740003200458l  59000148 DLC20260227111546.0770628s1959    sz           i000 0 eng c  al  59000148   a(OCoLC)3079748  aU.S. Dept. of Labor LibrarycNbUdDLC  apremarc00aTN343b.I63  a622.82 aInternational Labour Office10aPrevention of accidents due to electricity underground in coal mines.  aGeneva,c1959.  av, 54 p.c18 cm.  aAt head of title: I. L. O. codes of practice. 0aCoal mines and miningxSafety measures. 0aElectricity in mining.0 aI. L. O. codes of practice.