The best Hungarian industrialists, awarded the title of Hero of Socialist Labor, demonstrate their inventions. Ch. Engineer of the Dimavag plant in Miskolc, Peter Maus, with a group of designers, examines a drawing, grinding of spindle shafts; Ignaz Pioker, planer at the Budapest Electric Light Factory, demonstrates a double cutter; milling cutter at the Budapest Electrotechnical Plant named after Clement Gottwald Janos Parhazi at work.