A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Erecting 40-ton girders at a height of 250 feet above the street
Method of hoisting with a single derrick a number of 62-foot plate girders over the roof of an occupied twelve-story building. (2000 w.) (No. 57508)
Erecting 40-ton girders at a height of 250 feet above the street
Method of hoisting with a single derrick a number of 62-foot plate girders over the roof of an occupied twelve-story building. (2000 w.) (No. 57508)
Erecting 40-ton girders at a height of 250 feet above the street
Eng Rec
1914
Ills.
Article (Journal)
English
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