3D printers; 3D printing pens; Dishwashers; Brushes for vacuum cleaners; Central vacuum cleaning installations; Cleaning appliances utilizing steam; Clothes washing machines; Coffee grinders, other than hand-operated; Dust exhausting installations for cleaning purposes; Dust removing installations for cleaning purposes; Electric machines and apparatus for carpet shampooing; Electric screwdrivers; Electric wax-polishing machines for household purposes; Electric wax-polishing machines for indus...