LandOfFree - US Patents - Listing for Metallurgical apparatus,Means for treating ores or for extracting metals,By means applying heat to work, e.g., furnace

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Bell and hopper for shaft furnaces

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Reexamination Certificate

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Blast furnace bottom cooling arrangement

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Blast furnace evaporative cooler

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Blast furnace smelting of zinc

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Blast furnace support apparatus

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Blast-furnaces in the region of the pouring apertures

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Bleeder valve for pressurized furnace

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Reexamination Certificate

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Bottom cooling arrangement for reduction apparatus

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Brick casting method of making a stave cooler

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Burner apparatus for molten metal fume suppression

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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