A rectangular cross-section sheet metal duct system that is automatically sealed when assembled prevents or reduces leakage of air from the duct system.
申请公布号
CA2823794(A1)
申请公布日期
2014.02.14
申请号
CA20132823794
申请日期
2013.08.14
申请人
DUCTMATE INDUSTRIES, INC.
发明人
GUDENBURR, DOUGLAS G.;JEFFERSON, ALVIN L.;OVERDORFF, DAVID E., II
