Cabinets for loudspeakers; Cameras; Cinematographic cameras; Computers; Electric light switches; Electric switches; Electric wires and cables; Electro-dynamic apparatus for the remote control of signals; Integrated circuits; Integrated circuits, integrated circuit chips, and integrated circuit modules for digital video compression and decompression; Light emitting diodes (LEDs); Lighting ballasts; Lighting control panels; Optical lanterns; Photocopiers; Radios; Radiotelephony sets; Triodes; V...