9 DIGITAL COMPUTERS; MICROCALCULATORS; TALKING MACHINES; COMPUTER PROGRAMS IN THE FOLLOWING FIELDS; ELECTRICAL, APPLIED ELECTRONICS, TECHNICAL SERVICES, CIVIL ENGINEERING, TRANSPORTATION, HYDROELECTRIC, THERMAL ENERGY INCLUDING FOSSIL FUEL AND NUCLEAR ENERGY CONSTRUCTION, DRILLING, ELECTRICAL ENERGY TRANSMISSION AND DISTRIBUTION, MINING AND MINERAL PROSPECTING, SEA-BED PROSPECTING, TESTING, LABORATORY, ELECTRICITY-NETWORKS AND EQUIPMENT, TURNKEY FACTORY CONSTRUCTION; MAGNETIC MEDIA IN THE FORM OF TAPES, DRUMS, DISKS, SHEETS AND CARDS FOR THE RECORDAL OF DATA; LIGHTNING ARRESTERS; ALARMS (OTHER THAN FOR VEHICLES); SIRENS; AERIALS; LUMINOUS SIGNS FOR ROADS; STATIC AND ROTARY ELECTRIC CONVERTERS; APPARATUS FOR ANALYZING INFRA-SOUND; ELECTRICAL AND OPTICAL CABLES; ELECTRIC SAFETY FUSES; MAGNETS; PREFABRICATED DUCTS FOR ELECTRIC CABLES; COIN-OPERATED VENDING MACHINES; PUSH-AND-TURN ELECTRIC SELECTOR SWITCHES; CAM-OPERATED ELECTRIC SELECTOR SWITCHES; WIND TUNNELS FOR DETERMINING THE EFFECT OF WIND PRESSURE ON OBJECTS; HYDRODYNAMIC TUNNELS FOR DETERMINING THE EFFECT OF HYDRODYNAMIC PRESSURE ON OBJECTS; ENERGY MANAGEMENT AND CONTROL SYSTEMS FOR CONTROLLING THE PRODUCTION AND TRANSPORTATION OF ENERGY COMPRISING SIGNALLING AND CONTROL SWITCHES, CONTROL BOARDS, ELECTRIC SIGNALLING UNITS AND VISUAL INDICATORS, INDICATORS, REGULATORS, RECORDERS, INTEGRATORS AND CONTROLLERS OF RECORDERS, INTEGRATORS AND CONTROLLERS OF COMBUSTION AND FLUID FLOW IN NUCLEAR, STEAM, HYDRAULIC AND SOLAR POWER STATIONS; ELECTRONIC SYSTEMS FOR CONTROLLING THE PARAMETERS OF AN INDUSTRIAL OR AN OPERATING INSTALLATION COMPRISING SIGNALLING AND CONTROL SWITCHES, CONTROL BOARDS, ELECTRIC SIGNALLING UNITS AND VISUAL INDICATORS, INDICATORS, REGULATORS, RECORDERS, INTEGRATORS AND CONTROLLERS OF COMBUSTION AND FLUID FLOW IN NUCLEAR, STEAM, HYDRAULIC AND SOLAR POWER STATIONS; STATIC VAR SYSTEMS; NAMELY, AUTOMATIC VOLTAGE REGULATORS FOR INDUSTRIAL AND PUBLIC ELECTRICAL DISTRIBUTION SYSTEMS; HIGH VOLTAGE DIRECT CURRENT (HVDC) TRANSMISSION AND CONTROL SYSTEMS; HVDC SIMULATORS