U.S. federal trademark · Serial No. 86703757
calibration marking device for calibrating media blasting system metering valves, namely, a device in the nature of a scale that provides a visual indicator of how opened or how closed a valve is for use in monitoring the amount of abrasive media flowing through a valve and for accurately positioning the valve stem to control an integral component of manually adjustable fluid control valves for forcibly propelling a stream of abrasive material under pressure toward a surface to be cleaned or treated
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.