9 Magnets, magnetizing and demagnetizing apparatus; Scientific apparatus and laboratory apparatus for physical reactions by means of electricity; apparatus, instruments and wires for electricity; optical apparatus and equipment, amplifying apparatus and correctors; apparatus for scientific research and laboratory, teaching apparatus and simulators; measuring, detecting, monitoring and control apparatus; electrical and electronic control and driving systems and circuits; mechatronic elements and systems; keyboards and control panels for electronic and units for electronic control and data processing equipment; electrical and electronic switches and electronic switches and buttons; signal and data bus systems; computers; monitors; electromagnets; electromagnetic or electronic sensors; inductive sensors; capacitive sensors; optical Sensors; optical sensors