IC 011. US 013 021 023 031 034. G & S: Furnaces; apparatus for supplying feed materials to furnaces, namely, lances and tuyeres; injection lances for furnaces; water cooled panels for furnaces; apparatus for processing off gases produced in furnaces, namely, cyclones for combusting gases produced in furnaces, hoods for conveying and cooling hot gases produced in furnaces; apparatus for pretreating feed materials for furnaces, namely, kilns and pre-heat chambers for pre-heating and/or pre-reducing raw materials feed to furnaces; apparatus for handling molten material produced in furnaces, namely, slag notches, slag zone coolers, forehearths
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