U.S. federal trademark · Serial No. 71601041 · Reg. No. 0623037
COAL, GAS, AND OIL FIRED FURNACES AND AIR CONDITIONING UNITS, GAS AND OIL CONVERSION BURNERS, WARM AIR DUCT PIPE AND FITTINGS FOR GRAVITY AND FORCED-AIR FURNACE INSTALLATIONS, SPECIALTIES FOR HEATING INSTALLATIONS, INCLUDING REGISTERS, GRILLES, DAMPERS, AND CHIMNEY CLEAN-OUT DOORS
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