Vol. 42, no.1- Jan. 1938- each issue qin 2 partsq, pt.2 being a Statistical and technical data section, loose but paged in. (July 1938 qin 3 partsq, pt.3 being index).2, - 404.021. Paul Alexander and Cecil Whiley. Vapor vacuum pump comprising boiler, central tube depending Into boiler having ... Loy Hagenbook to Goodman Manufacturing Co. .... fluid to counteract heat exchange between enclosure and outside air, control means comprising thermostat responsive to temperature ofanbsp;...