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RADIO TRANSMITTERS, RADIO AND TELEVISION RECEIVERS, RADIO ANTENNAE, BATTERIES, AND BATTERY CHARGERS FOR USE IN SHIPS, AIRCRAFT AND ON LAND IN CONNECTION WITH NAVIGATION, SURVEYS, POSITIONFIXING AND SIGNALLING, AND PARTS THEREFOR

RADAR UNITS, INPUT RECEIVERS, COMPUTERS, INTERFACES, CONTROLLERS, OUTPUT CONNECTORS, DISPLAYS, PLOTTERS AND PRINTERS FOR USE IN SHIPS, AIRCRAFT AND ON LAND IN CONNECTION WITH NAVIGATION, SURVEYS, POSITON-FIXING, TEACHING AND MEASURNG, AND PARTS THEREFOR