77273385
Sep 6, 2007
Jul 8, 2008
HVAC ductwork components and accessories made primarily of metal, namely, flanges, connectors, couplings, access doors, and hangers
Metal GoodsHVAC ductwork components and accessories made primarily of metal, namely, diffusers, air turning vanes and rails, and dampers, namely, control devices used in air ducts to regulate the flow of air
Environmental Control Apparatus