Classification Information
TELECOMMUNICATIONS EQUIPMENT COMPRISING TRANSMISSION SYSTEMS-NAMELY, MICROWAVE RADIO TRANSMITTERS AND RECEIVERS AND PROTECTION SWITCHING SYSTEMS THEREFOR, MICROWAVE RADIO REPEATERS, FIBER OPTIC TRANSMISSION SYSTEMS, MULTIPLEX SYSTEMS, CABLE CARRIER SYSTEMS, DATA TRANSMISSION SYSTEM, PULSE CODE MODULATION SYSTEMS, SUPERVISORY CONTROL SYSTEMS, ECHO SUPPRESSORS AND SIGNALING SYSTEMS; CENTRAL OFFICE SYSTEMS-NAMELY, TELEPHONE SWITCHNG SYSTEMS; PRIVATE AUTOMATIC BRANCH EXCHANGES; AND STATION EQUIPMENT-NAMELY, TELEPHONE SETS CORD CONNECTORS, COIN CONTROLLER TELEPHONE SETS INTERCOMS, AND TELEPHONE ANSWERING MACHINES; AND TELEPHONE AND TELEPHONE LINE TESTING INSTRUMENTS
Electrical and Scientific Apparatus