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Subject Evaporators Remove constraint Subject: Evaporators

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    • circa 1960-Jul

    General view of Stan Fenelon (left), Pexite rosin and refinery supervisor, and Clarence Darley (right), day relief operator, examining the rosin solution evaporator apparatus at the Hercules Powder Company plant in…

    • 1947-Jan-07

    General view of assorted machinery, including a holding tank, evaporator, and auxiliary steam boiler, used for batch wise production and storage of low dew point melt during the early stages of synthetic fiber…