U.S. federal trademark · Serial No. 73073891 · Reg. No. 1074905
STEAM PRESSURE RECORDING AND CONTROLLING DEVICES-NAMELY, PRESSURE CONTROLLERS, PRESSURE RECORDING CONTROLLERS, PRESSURE RECORDERS, FLOW CONTROLLERS, FLOW RECORDING CONTROLLERS, FLOW METERS, TEMPERATURE RECORDERS, RECORDING THERMOMETERS, DIFFERENTIAL CONTROLLERS, DIFFERENTIAL LIMIT CONTROLLERS
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