U.S. federal trademark · Serial No. 75128012 · Reg. No. 2069674
hand tool in the nature of an elongated tube with radially expanding gripping arms and gas conduits to be used inside of pipes or tubes for holding, aligning and purging said pipes or tubes during the welding process
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.