U.S. federal trademark · Serial No. 72183299 · Reg. No. 0778510
CUPOLAS, AIR OR REVERBERATORY FURNACES, ROTARY FURNACES, STEEL CONVERTERS, ANNEALING OVENS, DUST FILTERS, SAND DRYERS, PULVERIZED COAL BURNERS, DIRECT ARC ELECTRIC METAL MELTING FURNACES AND ELECTRIC INDUCTION METAL MELTING FURNACES
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