Aerials; alarm bells (electric); alarms; audiovisual receivers; burglar alarms; camcorders; cameras; cash registers; cassette recorders; computer software for the transmission of wireless contents; computers; data processing apparatus; electric audio and visual apparatus and instruments; electric batteries; electronic semi-conductors; electronic warning bells; fixed multichannel communication apparatus; hydrophone machines and apparatus; intercommunication apparatus; laptop computers; LCD large screen displays; LCD panels; locks (electric); magnetic cards; magnetic identifying cards; mobile telephones; monitors (computer hardware); paging apparatus; portable communications apparatus; prompters for televisions; radio and television aerials; radiotelegraphy sets; recorded computer software; recording and playing devices for sound and image carriers; remote control apparatus; repeaters for radio and television stations; satellite aerials; scanners (data processing equipment); sound recording apparatus; sound recording carriers; sound reproduction apparatus; telescopes; television apparatus; television monitors; television transmitters; terminals (electricity); video cameras for broadcasting; video monitors; video projectors; video recorders; video screens; video telephones; video transmission apparatus; videotapes; wires (electric); apparatus for recording, transmission or reproduction of sound or images; electronic theft prevention installations; computer keyboards; personal digital assistants (PDAs); remote control apparatus for telemetering machines; videotape recorders