73094811
Jul 28, 1976
Aug 8, 1978
DUCON TECHNOLOGIES INC.
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AIR POLLUTION CONTROL DEVICES-NAMELY, WET SCRUBBERS, SETTLEMENT TANKS, CUPOLA STACK QUENCHERS, DUCT CONTROL GATES, STACKS AND DUCT WORK
ENGINEERING DESIGNING SERVICES OF AIR POLLUTION CONTROL SYSTEMS FOR OTHERS