840-56 - Teleconference Systems, Audio/Video (To Include Video on Demand Systems)
838-96 - Wire and Cable, Telecommunication (Not Otherwise Specified)
840-38 - Monitors, Television
880-43 - Projection Screens, Standard and Rear-Projection Types
803-45 - Music Systems and Components: Amplifiers, Mixers, Preamplifiers, Tuners, Turntables, etc.
285-16 - Commutators, Resurfacers, Stone
803-61 - Public Address Systems, Stationary
840-70 - Video Camera-Recorders, Accessories and Parts (Portable Type)
838-81 - Telecommunication Equipment (Via Satellite) for Emergency Vehicles (Including Radio Terminal Display)
803-80 - Speakers and Accessories: Drivers, Enclosures, Grilles, Grille Cloth, etc.
840-43 - Rewinding Equipment, Tape
204-13 - Cables: Printer, Disk, Network, etc.
285-95 - Wiring Devices: Adapters, Caps, Connectors, Extension Cords, Fluorescent and HP Starters, Outlets, Plates and Covers, Plugs, Receptacles, Safety Cord Lock, Switches, Terminals, etc. (Incl. Recycled Electrical Products, Supplies)
840-27 - Carts and Stands, Television
838-28 - Cable, Copper (Cat. 5E 6 etc) Including Interconnecting Components and Accessories (See Class 280 for Other Communications Cable)
803-39 - Microphones and Related Equipment (Not Wireless Systems): Chestsets, Earphones, Handsets, Headphones, etc.
655-95 - Video Equipment and Accessories (Including Tapes)
803-40 - Microphones and Related Equipment (Wireless Systems): Chestsets, Earphones, Handsets, Headphones, etc.
840-14 - Audio Equipment and Accessories, Television (Microphones, Mixers, and Amplifiers)