Illinois Malleable Iron Co. · Illinois Malleable Iron Co. · leaf 273
Fig. 9393A SECTIONAL VIEW OF SECTION OF IMICO ILLINOIS BOILER, SHOWING DIAMONDCORRUGATIONS AND WATER CIRCULATION … Fig. 9393B CHICAGO, ILLINOIS 245 IMICO ILLINOIS BOILERS INSIDE VIEW OF FIRE POT OF IMICO ILLINOIS BOILERSSHOWING DIAMOND CORRUGATIONS ALONG SIDES OF FIRE POT ANDEXTENDED CONSTRUCTION OF CROWN SHEET
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