X-NET

COMPUTERS; ELECTRONIC DATA INPUT AND OUTPUT APPARATUS FOR USE WITH COMPUTERS; COMPUTER PROGRAMMES; AVIONICS AND COMMUNICATION APPARATUS AND INSTRUMENTS; AUDIO-FREQUENCY TELEPRINTER APPARATUS, TELEPHONES, CASH REGISTERS, CALCULATING MACHINES, COMPUTER PROCESS CONTROL AND MONITORING APPARATUS AND INSTRUMENTS; APPARATUS AND INSTRUMENTS, ALL FOR PLOTTING; GRAPHICAL AND ALPHANUMERICAL DATA DISPLAY APPARATUS; FEED-BACK DEVICES FOR USE WITH COMPUTERS; APPARATUS AND INSTRUMENTS, ALL FOR USE WITH SATELLITES; APPARATUS AND INSTRUMENTS, ALL FOR SPACE STATIONS; APPARATUS AND INSTRUMENTS, ALL FOR USE IN AIRPORTS FOR THE MONITORING AND CONTROLLING OF AIRCRAFT, LAND VEHICLES AND OF PERSONNEL; APPARATUS AND INSTRUMENTS FOR ALARM SYSTEMS, X-NET TERMINAL OUTLETS, TDX CABLES, AMPLIFIERS, CARD READERS

TELEPHONE COMMUNICATION AND TELEPHONE MESSAGES

DEVELOPMENT OF SOFTWARE; AND TESTING OF DATA PROCESSING SYSTEMS