U.S. federal trademark · Serial No. 71348712 · Reg. No. 0314576
ELECTRIC FURNACES AND OVENS, ELECTRIC HEAT-TREATING FURNACES AND OVENS, AND REAGENT-TREATING RETORTS,FOR CASE-FORMING CARBURIZATION AND FOR PREVENTION OF DECARBURIZATION OF FERROUS METALS, STEELS AND ALLOYS; AND FOR PARTS AND ACCESSORIES OF AND FOR THE AFORESAID FURNACES, OVENS AND RETORTS
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