U.S. federal trademark · Serial No. 73002152 · Reg. No. 1010964
PIPES, DUCTS AND STACKS FOR HEATING, COOLING AND VENTILATING SYSTEMS AND PARTS THEREFOR-NAMELY, PLENUMS, ELBOWS, ANGLES AND TAKEOFFS; TRUNK END CAPS, DAMPERS, STARTING COLLARS, REDUCERS, INCREASSERS AND ADAPTERS; STACK AND REGISTER ADAPTERS, DAMPERS, BOOTS AND HEADS; FURNACE PIPE DRAWBANDS, FLUE THIMBLES, WEDGE CONNECTORS, CASING COLLARS AND T AND Y FLUES; Y BRANCHES, PERIMETER FITTINGS; CEILING DIFFUSERS AND SLEEVE INSULATION
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