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CA175010A
|
|
Silver recovery
|
|
GB107644A
|
|
Improvements in Process for Treating Iron Ore for the Recovery of Iron and Manufacture of Steel therefrom.
|
|
CA173580A
|
|
Iron production
|
|
CA165916A
|
|
Method of purifying nickel
|
|
GB191512358A
|
|
Process for De-sulphurizing, Reducing and Refining Nickel Ores.
|
|
GB191501206A
|
|
Process for Treating Coal and other Material.
|
|
CA164103A
|
|
Coal separation
|
|
GB190303714A
|
|
Improved Means applicable in the Conversion of Steam into a Gaseous Product adapted for use in Furnaces and for other purposes.
|
|
US735206A
|
|
Mixing and dissolving apparatus.
|
|
US680313A
|
|
Process of desulfurizing ores.
|
|
CA243236A
|
|
Forgeable steel
|
|
CA243235A
|
|
Process of treating nickel ores and products resulting therefrom
|
|
CA245017A
|
|
Forging steel alloy
|
