Carnegie Library of Pittsburgh - Pittsburgh Iron & Steel Heritage

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T-Tri-Lok bridge floor construction
Technical analysis of steel and steel works materials
The_Inside_History
The_open_hearth
Tilting reverberatory melting furnaces for non-ferrous metals
The timbering of mines, particularly with steel
Tin-plate manufacture : a bibliography
Toilers of the river
Towboats
The traction engine
Transportation hints
Twin- and single-chamber, double-end underfired annealing furnaces
Twin-chamber, double-end underfired annealing furnace
Twin-chamber underfired carbonizing furnaces, small single-chamber underfired heat-treating and carbonizing furnaces, single-chamber underfired heat-treating and carbonizing furnaces, economizer heat-treating furnaces
United blooming mill equipment
United Engineering & Foundry Company, Pittsburg, Pa., U.S.A. : composed of McGill & Company Department, Lincoln Foundry Company Department, the Lloyd Booth Company Department, Phelps Street Plant, the Lloyd Booth Company Department, Oak Street Plant, Chil
United Engineering and Foundry Company, Pittsburg, Pa., U.S.A. : composed of McGill & Company Department, Lincoln Foundry Company Department, the Lloyd Booth Company Department, Chilled Roll Foundry Company Department, Frank-Kneeland Machine Company Depar
United States Assay Office at New York