Carnegie Library of Pittsburgh - Pittsburgh Iron & Steel Heritage

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  • Date = 1914
  • Original Format = Trade Catalog
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Apollo best bloom galvanized sheets
Apollo best bloom galvanized sheets
Sheet-steel -- Catalogs., Steel, Galvanized -- Catalogs., Metal-work -- Catalogs., American Sheet and Tin Plate Company -- Catalogs.
Armco - American Ingot Iron : some expressions of the estimate placed upon Armco-American Ingot Iron by those who are using it
Armco - American Ingot Iron : some expressions of the estimate placed upon Armco-American Ingot Iron by those who are using it
Iron -- Catalogs., Ingots -- Catalogs., Rolling (Metal-work) -- Equipment and supplies -- Catalogs., Iron industry and trade -- Catalogs., American Rolling Mill Company -- Catalogs.
The ""economic"" boiler (improved)
The ""economic"" boiler (improved)
Erie City Iron Works (Erie, Pa.) -- Catalogs., Steam-boilers -- Catalogs.
Electro-pneumatic interlocking
Electro-pneumatic interlocking
Railroads -- Signaling -- Interlocking systems., Railroads -- Safety measures.