Scientific, measuring, signaling, monitoring, and emergency apparatus and instruments, namely, a mechanical device to prevent explosion of an electrical transformer by depressurizing tanks, evacuating and eliminating gases from the transformer and avoiding contact between oxygen and evacuated explosive gases; fire fighting apparatus for injecting neutral gases, namely, nitrogen injectors; fire fighting apparatus for cooling explosive gases by means of mixing and stirring, namely, neutral gas injectors; fire extinguishing systems; apparatus for detecting fire, pressure, temperature, and fluid flow, namely, sensors; apparatus for closing, via fluid flow, changes in pressure, namely, conservator shutters and valves; apparatus for evacuating dangerous gases, namely, shutters, pipes, separation tanks and natural gas injectors for explosive gas elimination; apparatus for smothering fires, namely, nitrogen drain and stir fire extinguishing systems, separation tanks and depressurization tanks; electrical and electronic security and alarm apparatus and instruments against explosions, fires and for suppression, namely, indicator lights, sirens, temperature and level warning indicators, emergency signal transmitters, and beacon lights; electrical and electronic apparatus, instruments and equipments for receiving, conducting, distributing, transforming, accumulating or controlling electrical energy, namely, transformers, circuit breakers inductors and cable boxes, junction boxes, control and command post enclosures; components for all of the above products, namely, on-load top changers, bushings and circuit-breakers; downloadable electronic publications in the nature of scientific articles in the field of electricity, the mechanical prevention of transformers, the mechanical establishment of a transformer model, the transformer performance in emergency situation and the defect of a transformer during the initial period

Printed matter, namely, newsletters, printed reports, brochures, technical and scientific printed articles, commercial pamphlets, mechanical and electrical blueprints, architectural plans and specifications, and drawings, in the field of electricity, the mechanical prevention of transformers, the mechanical establishment of a transformer model, the transformer performance in emergency situation and the defect of a transformer during the initial period

Technical support services, namely, technical advice related to the installation, maintenance and repair of electrical transformers, of electrical reactors, of gas and liquid storage tanks of metal, of decantation tanks of metal, of on-load tape changers, of bushing insulators, and of their components and spare parts

Communications via computer terminals; providing multiple-user access to global computer information network; electronic mail services; computer assisted electronic transmission of messages, documents and images

Scientific and technological services, namely, research and design in the field of transformer protection