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US940537A
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Rabble for ore-roasting furnaces.
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GB190819469A
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Improvements in Rabbles for Ore Roasting Furnaces.
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US872827A
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Rabble shaft and arm for furnaces.
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US830904A
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Furnace for roasting, chloridizing, or drying ores.
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GB190521160A
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Improvements in Furnaces for Roasting, Desulphurising, Chloridising, Dehydrating, or Drying Ores and other Substances.
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US837576A
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Furnace for roasting, &c.
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CA107910A
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Ore furnace
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GB190517370A
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An Improved Furnace for Roasting, Desulphurising, Chloridising, Dehydrating, or Drying Ores, and other Substances.
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CA243097A
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Roasting furnace
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CA242379A
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Furnace for ore
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