Automatic check valves for use in a wide variety of commercial and industrial applicationsOwned by: DFT, Inc.Serial Number: 78936008
Filed: May 13, 2010control valves for plumbing and heating and cooling installationsOwned by: DFT, Inc.Serial Number: 85037538
Filed: July 26, 2010control valves for plumbing and heating and cooling installationsOwned by: DFT, Inc.Serial Number: 85092496