Carnegie Library of Pittsburgh - Pittsburgh Iron & Steel Heritage

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  • Language = English
  • Date = 1914
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The Connellsville coke regions : their past, present and future
How to buy an automobile
Iron_Ores
The making of Armco Iron : qualities other than high purity which have an important bearing on rust-resistance / B.G. Marshall.
A modern heat-treatment plant
The Pittsburgh district civic frontage
Pittsburgh Perfect electrically welded fences : catalogue and price list : also "Pittsburgh Perfect" brands of barbed wire, smooth wire, hard spring coil wire, twisted cable wire, telegraph & telephone wire.
Recent developments in the use of Mesta automatic plate valves (Iversen patent)
Songs from the smoke