Acoustic couplers; Amplifiers; Burglar alarms; Chargers for electric batteries; Condensers; Conductors, electric; Couplings, electric; Current rectifiers; Electronic components for computers; Humanoid robots with artificial intelligence; Light emitting diodes (LEDs); Relays, electric; Resistances, electric; Rheostats; Semi-conductors; Switches, electric; Transformers; Transistors; Variometers; Wafers for integrated circuits; Electronic chips for the manufacture of integrated circuits