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2 results containing "Dorr-Oliver Company"
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U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA
Documentation compiled after 1968 | Photo(s): 76, Color Transparencies: 5, Photo Caption Page(s): 8 | Historic American Engineering Record
HAER PA,2-DUQU,3A- -
U.S. Steel Duquesne Works, Basic Oxygen Steelmaking Plant, Along Monongahela River, Duquesne, Allegheny County, PA
Documentation compiled after 1968 | Photo(s): 54, Photo Caption Page(s): 5 | Historic American Engineering Record
HAER PA,2-DUQU,3B-
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