9 RAILROAD CONTROL SYSTEMS CONSISTING OF CONTROL PANELS, BOTH FIXED AND HAND HELD OR PORTABLE; WIRE BASED AND RADIO BASED CONTROLLERS, COMPUTERS, PRINTERS, MONITORS, INPUT/OUTPUT DEVICES, NAMELY SIGNAL RELAYS, SIGNAL CONVERTERS, MICROPROCESSORS, DISCRETE INPUTS/OUTPUTS, TRACK CIRCUITS, TRAIN PROXIMITY DETECTORS, WHEEL DETECTORS, AXLE COUNTERS, SIGNAL LAMPS, FIELD DETECTORS, CROSSING WARNING SENSORS AND DISPLAYS; SWITCH MACHINES; RAIL POINT MACHINES, DERAIL AND BLUE FLAGGING DEVICES, AND COMPUTER SOFTWARE TO CONTROL LOCOMOTIVES AND CONTROL RAILROAD SWITCHING SYSTEMS AND VEHICLE IDENTIFICATION AND LOCATION SYSTEMS
Trademark: 78266403
