characterised by program execution, i.e. part program or machine function execution, e.g. selection of a program

Full Title

Program-control systems > electric > Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of program data in numerical form (G05B19/418 takes precedence) > characterised by program execution, i.e. part program or machine function execution, e.g. selection of a program