U.S. federal trademark · Serial No. 72274487 · Reg. No. 0875567
PNEUMATIC CONTROL SYSTEM COMPRISING APPARATUS SUCH AS VACUUM RECEIVER, VACUUM PUMP, LIQUID LEVEL TRANSMITTER INCLUDING DIAPHRAGM OPERATED SIGNAL CONVERTER, DIFFERENTIAL PRESSURE CELLS, GAUGES, AND BUTTERFLY VALVES, FOR USE IN PULP PROCESSING INSTALLATIONS
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