. Official proceedings . DUIGNINC EMCINEERS AND MANUFACTURERS OF ELESCO STEAM SUPERHEATERS FOR AND STATIONARY BOILERS FEED WATER HEATERS , EXHAUSTSTEAM INJECTORS AND PYROMETERSFOR LOCOMOTIVES ^^w^^« THE SUPERHEATER COMPANY FVoplf B (»aft Building. ^ ll°5>PerYear ^^^ 25^ Per Copy ^ XXIX DECEMBER 19, 1929.

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