000			00421cam a2200133u 4500
082			_a621.19 _bNOR _cP-14, L-12
100	1		_aNorthcroft, Lionel George. [from old catalog]
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.
650		0	_aSteam-traps.
650		0	_aMCE
942			_cBK
999			_c5474 _d5474