000			00498cam a2200145u 4500
082			_a621.19 _bNOR _cP-14, L-12
100	1		_aNorthcroft, Lionel George. [from old catalog] _941046
245	0	0	_aSteam trapping and air venting,
260			_aBrooklyn, N.Y., _bChemical publishing co., inc., _c1946.
300			_a172 p. _btables (2 on fold. 1.) diagrs. (2 on fold. l.) _c22 cm.
526			_a0 _b0 _c0 _d621_190000000000000_NOR
650		0	_aMCE _9379
650		0	_aSteam-traps. _941047
942			_2ddc _cBK
999			_c545247 _d545247