Electric machines and apparatus for the production of energy; electric machines and apparatus for the use of energy, namely machines and apparatus for automatic synchronisation of generators; gas and steam turbines; electric motors; installations for electric welding, machines, apparatus and instruments for transportation by land, namely pneumatic transporters; components for the aforesaid machines, apparatus and instruments

Electric apparatus for the distribution of energy; electric apparatus for the use of energy, namely apparatus for synchronisation and monitoring of power lines; transformers; rectifiers, mutators, converters; physical and electrotechnical apparatus and instruments as installations and apparatus for electric welding, namely power circuit breakers, automatic voltage regulators, static voltage regulators and turbine regulators; electronic apparatus and installations, apparatus and instruments for high-frequency engineering, communication and control engineering, radiation transformer apparatus, electric regulating and control apparatus, in particular apparatus for synchronization of electric quantities; components for the aforesaid apparatus and instruments