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Carnegie Steel Company

Carnegie Steel Company, 1912

Bethlehem Steel Company

Bethlehem Steel Company, 1925

United States Steel Corporation

United States Steel Corporation, 1941

United States Steel Corporation

United States Steel Corporation, 1946

Bethlehem Steel Company

Bethlehem Steel Company, 1948

Carnegie-Illinois Steel Corporation

Carnegie-Illinois Steel Corporation

Mesta Machine Company

Mesta Machine Company, 1948

United States Steel Corporation

United States Steel Corporation, 1951

Wean Engineering Company

The Wean Engineering Company, 1951

MacKintosh-Hemphill Company

MacKintosh-Hemphill Company, 1953

MacKintosh-Hemphill Company

MacKintosh-Hemphill Company, 1953

Carolina Steel and Iron Company - Salem Steel Co

Carolina Steel & Iron Company + Salem Steel Co., 1958

United Engineering and Foundry Company

United Engineering and Foundry Company, 1961

United States Steel Corporation

United States Steel Corporation, 1975 ?

Kaiser Aluminum and Chemical Corporation

Kaiser Aluminum & Chemical Corporation, 1980