Duct/draft control system

patent information
Country Patent No. Date Issued Equipment Model
U.S.A. 10,288,349 5/13/2019 DACC-XXX
U.S.A. 9,598,824 3/20/2017 DACC-XXX
U.S.A. 9,353,489 5/30/2016 DACC-XXX
U.S.A. 7,566,162 7/27/2009 DACC-XXX
U.S.A. 9,683,336 3/20/2017 DACC-XXX
U.S.A. 9,855,677 1/1/2018 DACC-XXX