348 / | HD | TELEVISION |
739 | DF | VIDEO DISPLAY {13} |
805 | DF | .~ Cathode-ray tube {5} |
808 | DF | .~.~ Color TV {3} |
810 | .~.~.~ One electron beam supplying more than one color {2} | |
811 | DF | .~.~.~.~> Beam position indicating {3} |
815 | DF | .~.~.~.~> With electron-optical color selection |