Data processing apparatus; computer; recorded computer program (program); disc (magnetic); bar code readers; computer peripheral equipment; computer software (recorded); coded magcard; optical disc drivers (computer); integrated circuit cards; timers; facsimile machines; flash signal lamp; automatic indication panel; telephone; optical telecommunication equipment; program control telephone exchange equipment; radios; TV sets; entertainment equipment adapted for use with TV sets; video camera; camera; scientific detectors; optical apparatus and instruments; power supply materials (wires and cables); fluorescence screens; semiconductor parts; remote control instruments; fire extinguishers; battery boxes; plates for batteries; batteries; battery chargers; electric door closers; electric door openers