CABLE TELEVISION TRANSMITTERS, RECEIVERS, AND CABLES THEREFOR AS WELL AS DISTRIBUTING APPARATUS; TELEVISION AND RADIO SIGNAL TRANSMITTERS, ANTENNAS, RECEIVERS, AND DISTRIBUTION EQUIPMENT-NAMELY, TERMINAL BOXES, AMPLIFIERS, TRANSFORMERS, SWITCHES, RELAYS, COMMUTATORS AND INTERRUPTERS AS WELL AS PARTS THEREOF; CLOSED CIRCUIT TELEVISION MONITORS; ELECTRONIC MONITORING SYSTEMS FOR BUILDINGS COMPRISED OF TELEPHONE COMMUNICATION APPARATUS, TELEVISION MONITORS, TELEVISION CAMERAS, AND PARTS THEREOF