Accumulators, electric; Acoustic sound alarms; Batteries, electric; Chronographs for use as specialized time recording apparatuses; Coils, electric; Light emitting diodes (LEDs); Signal bells; Transmitters of electronic signals; Battery chargers; Chargers for electric batteries; Computer peripheral devices; Electrical plugs and sockets; Electromagnetic coils; Electronic chips for the manufacture of integrated circuits; Electronic signaling mechanism, namely, a train control system used in the...