Alarm installations and alarms; Apparatus for transmission of communication; Cables, electric; Camcorders; Data processing equipment, namely, couplers; Distribution boxes for electrical power; Electric cables, wires, conductors and connection fittings therefor; Electricity conduits; Fiber optic cables; Junction sleeves for electric cables; Light-conducting filaments; Light conducting filaments; Radiotelephony sets; Telephone wires; Computer hardware for communicating audio, video and data bet...