LEADER 01347nam  2200397I  450 
001 9910709681903321
005 20180627140216.0
035   $a(CKB)5470000002471414
035   $a(OCoLC)1037095162
035   $a(EXLCZ)995470000002471414
100   $a20180523d1923      ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aComparison of gas masks, hose masks, and oxygen breathing apparatus /$fS.H. Katz and J.J. Bourquin
210  1$a[Washington, D.C.] :$cDepartment of the Interior, Bureau of Mines,$d1923.
215   $a1 online resource (5 pages)
225 1 $aReport of investigations / United States Department of the Interior, Bureau of Mines ;$v2489
300   $a"June, 1923."
606   $aGas masks
606   $aRespirators (Medical equipment)
606   $aMine accidents
615  0$aGas masks.
615  0$aRespirators (Medical equipment)
615  0$aMine accidents.
700   $aKatz$b S. H$g(Sidney Hershberg),$f1884-$01412367
702   $aBourquin$b J. J.
712 02$aUnited States.$bBureau of Mines,
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910709681903321
996   $aComparison of gas masks, hose masks, and oxygen breathing apparatus$93505658
997   $aUNINA