9 VIDEO TAPE RECORDER/EDITORS; RAILROAD IDENTIFICATION SYSTEMS COMPRISED OF VIDEO CAMERAS, HOUSINGS FOR VIDEO CAMERAS, HIGH SPEED SHUTTER ADAPTERS, VIDEO MONITORS, TRACK DIRECTION ANALYZERS AND SENSORS, CONTROL CONSOLES, VIDEO TAPE RECORDERS, AND VIDEO CAR IDENTIFICATION COMPUTERS; DUPLICATION SYSTEMS COMPRISED OF RECORDER REPRODUCERS; FILM/SLIDE PROJECTORS; MULTI-IMAGE DISPLAY UNITS; PUBLIC ADDRESS SYSTEMS; ANTENNAS; ANTENNA TOWERS AND HEADENDS; BROADCAST STATION SYSTEMS, SOUND STUDIOS, AND MOBILE REMOTE PRODUCTION VEHICLES ALL COMPRISED OF CAMERAS, RECORDERS, PRODUCTION SWITCHES, AUDIO MIXERS, MICROWAVE STUDIO TRANSMITTER LINKS, TELEVISION TRANSMITTERS, AM RADIO AND FM STEREO TRANSMITTERS, AND PARTS THEREFOR; TELEVISION LIGHTING CONTROLS; DIGITAL CONTROLS; SURVEILLANCE CONTROLS; FIRE AND SMOKE ALARMS; CARD ACCESS SECURITY CONTROLS; AND MOBILE AND FIXED MICROWAVE TRANSMITTERS