73259161
Apr 21, 1980
Sep 11, 1984
Telecommunication Equipment-Namely, Transmission Systems Comprising: Microwave Radio Transmitters, Receivers, and Repeaters, Video Fiber Optic Transmitters, Receivers, and Repeaters; Frequency Division Multiplex Units; Coaxial Cable Carrier Terminals and Line Repeaters; Subscriber Carrier Frequency Multiplexers; Data Modems, Multiplexers, and Line Repeaters; Pulse Code Modulation Channel Banks and Line Repeaters; Supervisory Control Systems for Remote Site Status Reporting, Telemetering, and Telecontrol Functions; Echo Suppressors, and Voice Frequency and Signalling Units; Central Office Systems Comprising: Telephone Switching Exchanges; Private Automatic Branch Exchanges; and Station Equipment Comprising: Telephone Sets Cord Connectors, Coin Controller Telephone Sets, Intercoms, and Telephone Answering Machines; and Telephone Line Testing Instruments
Electrical and Scientific Apparatus