Development, production, sale, installation, service:
-displays and scoreboards
-electronic signboards:
-for advertising, banking, sport, petrol filling stations, traffic
-rateboards
-electronic graphic panels, colour graphic light panels
-digital clock and digital large-area thermometers
-clocking mechanism, timing
-ligh news.
Display writers in use:
-LED diodes
-bulbs
-electromechanical turning-over elements
-LCD displays.