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Charting steel's progress.

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Item Link Original Source
Limited (search only)   University of Michigan
Limited (search only)   1954 University of Colorado Boulder
Limited (search only)   1955-57 The Ohio State University
Limited (search only)   1955-62 State University System of Florida
Limited (search only)   1956 University of Colorado Boulder
Limited (search only)   1960-1970 Northwestern University
Limited (search only)   1964 University of Michigan
Limited (search only)   1968 University of Michigan
Limited (search only)   1969 University of Michigan