Metal wall and ceiling grids for loudspeakers and audio, video, and lighting equipment comprised of metal mounts and brackets for mounting and attaching loudspeakers and audio, video, and lighting equipment; Metal beam clamp for suspending strut, pipe, threaded rod, loudspeakers and other equipment; Kits containing metal hardware for suspending loudspeakers and audio, video, and lighting equipment in the nature of brackets, channels, fittings, tubes, mounts, bars, beams, non-electric cables f...

Semiconductors, integrated circuits, micro-processors, printed circuit boards, electronic circuit cards for electronic identification and magnetic cards for electronic identification, modems, transceivers, transceivers for communicating via electric lines, modems for communicating via electric lines