73312134
May 27, 1981
May 8, 1984
Communication Instruments-Namely, Telecommunications Transmitters and Receivers; High Frequency, Very High Frequency, Ultra High Frequency and Microwave Radio Transmitters and Receivers; Antennas; Outside Communications Cable and Plant Cable Carrier Transmitters and Receivers; Closed Circuit Television Instruments and Cameras; Video Switching Instruments and Circuitry; Telephone Switching Controllers; Teletype Switching Instruments and Circuitry; Data Transmission and Switching Instruments and Circuitry; Telemetry Transmitters and Receivers; Timing Controllers and Circuitry; Public Address Instruments; Controllers and Circuitry; Command/Control Instruments and Circuitry; Security/Surveillance Instruments and Circuitry; Extended Range Television Transmitters and Receivers; Mobile Television, and Cables and Connectors for the Foregoing
Electrical and Scientific ApparatusEngineering and Design Services for Telecommunications Systems and Transmitting and Receiving Equipment for Microwave Systems
Computer and Scientific