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  • Drake Well
    ... Places and designated a National Historic Landmark in 1966. It was designated a Historic Mechanical Engineering Landmark in 1979. The well ...
    12 KB (1,830 words) - 17:22, 8 July 2015
  • Operator List
    ... 1 - HISTORIC OWNER COLUMBUS ... - LANDMARK SQUARE LTD ... Operating Engineers Local 17 ... 16 - PENN MECHANICAL GROUP INC. HOME ...
    1.14 MB (152,429 words) - 18:26, 12 October 2014
  • Oil refineries
    ... two cooling tower s are landmarks of the city's skyline. ... engineer when equipment must be replaced based on the historical ... corrosion mechanisms, ...
    29 KB (4,238 words) - 14:07, 17 June 2015
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