[ Electrical equipment for [ rail vehicles and ] [trolley buses, namely, power electronic circuits for] [ railway and ] [trolley bus applications,] [ railway and ] [trolley bus control systems, namely,] [ drive and brake control units, drive and brake controllers, starting and braking resistors, condensers,] [static converters, contactors, inverters,] [ on-board power supplies, electronic blinker units, electric and electronic switches, light sensitive switches, radio transmitters and transducers, resistors, ] brake switches, [ reversers, ] switching elements, [ latching relays, contact switches,] traction converters, [ detectors, namely, excess current and voltage relay and electronic leakage detectors, electronic multifunctional relays, ] current collectors, [ cam-operated switches, electronic displacement transducers ] ; safety devices for conveyers and elevators, namely, pull rope emergency stop switches, belt misalignment switches, [ metal detectors, ] limit switches, shaft driven speed monitors, electronic speed monitors, misalignment switches for bucket elevators and switches ] *Electrical equipment for trolley buses, namely, power electronic circuits for trolley bus applications, trolley bus control systems, namely, static converters, contactors, inverters, [railway control systems, namely, brake switches, switching elements, trolley bus control systems, namely, traction converters, current collectors;] safety devices for conveyers and elevators, namely, pull rope emergency stop switches, belt misalignment switches, limit switches, shaft driven speed monitors, electronic speed monitors, misalignment switches for bucket elevators and switches*