U.S. federal trademark · Serial No. 74055660 · Reg. No. 1650643
liquid and gas meters, venturi tubes, pitot tubes, indicating rate gauges, recording rate gauges, combination recording and indicating rate gauges, gauges for indicating and recording the loss of head through a filter and rate of flow or both, gauges indicating or recording rate of flow and totalizing the flow, manometers and pitot recorders
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.