AERA

Air-gas generating apparatus, namely, apparatus for generating gas for calibration purposes; flowmeters; measuring or testing machines and instruments, namely, mass flow meters for measuring fluid flow, gas flow and liquid flow and their accessories, namely, power supplies, flow indicators and interface connecting adapters; power controllers; regulating apparatus, electric, namely, apparatus for regulating electric current; control machines and apparatus, namely, mass flow controllers for controlling fluid flow, gas flow and liquid flow and their accessories, namely, power supplies, flow indicators and interface connecting adapters and gas pressure controllers for controlling gas pressure; capacity measures in the nature of electric meters; electric meters; remote control telemetering machines and instruments; electronic control systems for machines; computers; magnetic encoders; computer peripheral devices