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>Investigation of various factors affecting the heating of rooms with direct steam radiators, conducted by the Engineering Experiment Station, University of Illinois in cooperation with the Institute of Boiler and Radiator Manufacturers and the Illinois Master Plumbers' Association
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Investigation of various factors affecting the heating of rooms with direct steam radiators, conducted by the Engineering Experiment Station, University of Illinois in cooperation with the Institute of Boiler and Radiator Manufacturers and the Illinois Master Plumbers' Association