3. Envriro International Corporation India - air pollution control ...
air pollution control systems, ventilation systems, India, Envriro International Corporation air pollution control systems, ventilation systems, bag filter, dust collector, scrubbers, pulse jet bag filter
6. Multilevel air distribution panel for air ventilation hood - US ...
Patent Abstract: Improved air flow characteristics are obtained in a ventilating hood of the make-up type used over cooking surfaces by providing an air distribution panel ...