73338311
Nov 23, 1981
Dec 27, 1983
Microprocessor Based Data Acquisition and Control Systems for Supervisory, Control, Data Acquisition and Telemetering Applications, and Components and Subsystems Thereof-Namely, Logic Boards, Status and Alarm Expansion Units, Control Output Expansion Units, Analog Input/Output Expansion Units, and Local Digital Displays
Electrical and Scientific Apparatus