electrical and scientific apparatus, namely, electronic converters, electrical transformers; pressure vessels and pressurized reactors in the nature of electrical controllers for automatically actuating turbines [ for use in actuating turbines; ] charge regulators for use in photovoltaic units; [ nuclear reactors; ] magnets; safety equipment, namely, electromechanical and electronic signal lights and moveable screen signals for railway and urban transit stations and lines; switch control boxes; safety equipment, namely, colored light signals and movable screen signals; safety condition ground-board electrical data transmitters and pickups; illuminated diagram and interlock board chronological event detectors for recording changes in the operation of railway equipment; a.c./d.c. substations which provide electrical power to railway networks and urban [ transmit ] * transit * and trolley-bus networks; regulated and regenerative substations which provide power to railway networks; silicon rectifiers for substations; semiconductors; computer operating system and electromechanical controls for use in computer operating system using motor drive and control system technology for the operation of equipment in iron and steel plants, process plants, and naval systems; electromechanical circuit devices, namely, circuit breakers and electrical contactors for circuits; electromechanical actuators used for automatic train control for the automatic operation of a brake valve; electrical controllers and electric switchers; high capacity electrical power supply; electric resistors for thermal dissipation; environmental control apparatus, namely, photovoltaic modules for electricity generation and electrochemical fuel cells; laboratory robots for remote maintenance operations; high dexterity laboratory robots for applications in the nuclear, airspace, civil defense, marine and remote or hazardous environment sectors and for use in the transfer and inspecting of remote controlled mobile platforms; TV cameras for artificial vision and sensors with real time image processing for robotics applications used for safety operations and handling suspicious or dangerous objects

nuclear reactors