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Department Archives Remove constraint Department: Archives Genre Documents Remove constraint Genre: Documents Date 1943 Remove constraint Date: <span class='single'>1943</span>

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    • circa 1943

    The oxygen recorder described was intended for analyzing flue gases produced from burning oil or coal.

    • 1943-Nov

    The report discusses work performed between September 20 and October 31, 1943, under contract number OEMsr-674. Beckman reported beginning construction of the first model of an instrument to record concentrations of…