9 Electric measuring apparatus and electric measuring instruments, namely, sensors for measuring forces, accelerations or temperatures; visual display apparatus, namely, computer display screens, touch screens, and electronic display screens providing visual displays of the outputs of sensors for measuring forces, accelerations or temperatures; electric apparatus in the nature of control systems for machines for controlling machines for workpiece machining, for controlling machine tools, for controlling assembly modules, for controlling servo presses and for controlling assembly presses; electric controllers for servo motors; electric amplifiers for servo motors; rotation angle sensors for servo motors; force sensors for machines for workpiece machining, for machine tools, for assembly modules, for servo presses and for assembly presses; acceleration sensors for machines for workpiece machining, for machine tools, for assembly modules, for servo presses and for assembly presses; displacement sensors for machines for workpiece machining, for machine tools, for assembly modules, for servo presses and for assembly presses; temperature sensors for machines for workpiece machining, for machine tools, for assembly modules, for servo presses and for assembly presses; electric calibration apparatus in the nature of calibration devices for calibrating machines for workpiece machining, for machine tools, for assembly modules, for servo presses and for assembly presses; downloadable software for controlling machines for workpiece machining, for controlling machine tools, for controlling assembly modules, for controlling servo presses and for controlling assembly presses; downloadable software for controlling the availability of machines for workpiece machining, for controlling the availability of machine tools, for controlling the availability of assembly modules, for controlling the availability of servo-presses and for controlling the availability of assembly presses; downloadable software for processing the data of electrical controllers for servo motors, for processing the data of electric amplifiers for servo motors and for processing the data of rotation angle sensors for servomotors; downloadable software for processing the data of force sensors for machines for workpiece machining, for processing the data of force sensors for machine tools, for processing the data of force sensors for assembly modules, for processing the data of force sensors for servo-presses and for processing the data of force sensors for assembly presses; downloadable software for processing the data of acceleration sensors for machines for workpiece machining, for processing the data of acceleration sensors for machine tools, for processing the data of acceleration sensors for assembly modules, for processing the data of acceleration sensors for servo presses and for processing the data of acceleration sensors for assembly presses; downloadable software for processing the data of displacement sensors for machines for workpiece machining, for processing the data of displacement sensors for machine tools, for processing the data of displacement sensors for assembly modules, for processing the data of displacement sensors for servo-presses and for processing the data of displacement sensors for assembly presses; downloadable software for processing the data of temperature sensors for machines for workpiece machining, for processing the data of temperature sensors for machine tools, for processing the data of temperature sensors for assembly modules, for processing the data of temperature sensors for servo-presses and for processing the data of temperature sensors for assembly presses