Telescopes; Audio-receivers and video-receivers; Audio headphones; Audiovisual receivers; Cinematographic machines and apparatus; Computer peripheral equipment; Dictation machines; Electric and electronic video surveillance installations; Electric cables, wires, conductors and connection fittings therefor; Ethernet transceivers; Humanoid robots with artificial intelligence for use in scientific research; Matrix switchers for audio and video signals; Media players; Multimedia projectors; Trans...