U.S. federal trademark · Serial No. 74141079 · Reg. No. 1669268
heat exchanger test kits consisting of calibrating gas cylinders and regulators, tracer gas cylinders and regulators, and a gas injector wand for sensing leaks or cracks in residential or industrial heating furnaces
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.