74305967
Aug 18, 1992
Oct 26, 1993
chemical recovery, pollution control and energy generating plants for heating, steam generation, cooking, refrigerating, drying and ventilation for use in the chemical, pulp and paper industries, comprised of gasifiers, air compressors, air blowers, heat exchangers, burners, boilers, scrubbers, gas and steam turbines, filters, preheaters
Environmental Control Apparatus