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 Date: 2014-07-24 09:54:43Ancient Greek technology Crane Hoist Lifting hook Mobile crane Fly system Boom Elevator Transport Technology Terminology |
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Date: 2014-07-24 09:54:43Ancient Greek technology Crane Hoist Lifting hook Mobile crane Fly system Boom Elevator Transport Technology Terminology |
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Report of Investigation - Surface Nonmetal Mine - Limestone - Fatal Machinery Accident