9 INDUSTRIAL ELECTRONIC INSTRUMENTS AND CONTROLS-NAMELY, FLOW MONITORS FOR COMPRESSED GASES, CATHODIC PROTECTOR POWER SUPPLIES, ELECTRICALLY CONTROLLED DAMPER AND VALVE OPERATORS, TEST INSTRUMENTS FOR TELEPHONE CABLES, SOLID STATE ALTERNATORS, LIQUID LEVEL INDICATORS AND CONTROLS, LOAD CONTROLS FOR CRANES, TIMERS, PUMPING STATION ALARMS, AND THE LIKE