Carnegie Library of Pittsburgh - Pittsburgh Iron & Steel Heritage

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  • Subject = Foundries -- Equipment and supplies -- Catalogs.
  • Subject = American Bridge Company -- Catalogs.
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Heroult electric furnaces
Heroult electric furnaces manufactured by American Bridge Company .
Electric furnaces -- Catalogs., Foundries -- Equipment and supplies -- Catalogs., American Bridge Company -- Catalogs.
19 pages : illustrations 21 x 27 cm.