Class 007
Machinery Products
Plastic packing for industrial and commercial processes involving mass transfer between liquid and gas flows; fan outlet stacks for general industrial purpose; energy saving exhaust stacks for general industrial purposes and for use in hospitals, chemical laboratories, pharmaceutical manufacturing, steel process mills, food process plants, acid plants and waste water treatment plants; energy saving exhaust stacks for ventilating exhaust and intake systems in buildings; laboratory exhaust fan control systems, laboratory exhaust fans and fan outlet stacks; electronic control systems for laboratory exhaust fans; ventilating exhaust fans, namely, laboratory exhaust fans; fiberglass-reinforced plastic centrifugal fans; fiberglass-reinforced plastic inline centrifugal fans; fiberglass-reinforced plastic axial fans; perchloric acid exhaust systems; scrubber fume hoods for general industrial purposes and for use in hospitals, chemical laboratories, pharmaceutical manufacturing, steel process mill, food process plants, acid plants and waste water treatment plants.
