9 Electric motors and servo motors as parts of drive and control systems; electrical and electronic control, regulation, switching devices in the nature of controls, regulators for driving machine axes, switches, operator panels including displays, electric drives for production machines; electrical and electronic open and closed-loop controllers for electrical, electro-hydraulic and electro-pneumatic drives; automation devices, namely, electronic numerical controllers; electrical drive system equipment for the regulation and operation of machines, namely, power supply units, control units, position controls, speed controls, force controls, analog and digital interface modules, drive computers; operation system software for the operation of digital automation equipment; computer programs for the control of the work cycle of numerically controlled machine tools; computer programs used to automate the operation of machine tools