Amplifiers; Antennas; Audio amplifiers; Communication software for providing access to the Internet; Communications software for connecting computer network users [, global computer networks ] ; Electro-dynamic apparatus for the remote control of signals; Electronic testing equipment, namely, telecommunication line integrity testing apparatus; [ Global positioning system (GPS); Lightning conductors; Phototelegraphy apparatus; ] Radar apparatus; Radio transmitters; [ Radios; ] Remote control t...