Electrostatic precipitators for cleaning air; Electrostatic precipitators for cleaning gases; Installations for dust separating; Dust exhausters; Dust extraction installations (ventilation); Dust removing installations for ventilation; Apparatus for exhausting dust (ventilation); Apparatus for extracting dust (ventilation); Dust suction installations for industrial purposes; Spray fittings (parts of sanitary installations); Air filters for use as dust extractors; Filters for dust; Dust cyclone filters; Electrically powered blowers for dust extraction from the air; Apparatus for filtering dust; Portable search lamps

vacuum cleaners; vacuum pumps [machines]; brushes for vacuum cleaners; compressed air pumps; air suction machines; blowing machines; weeding machines; kitchen grinders, electric; machines and apparatus for wax-polishing, electric; screwdrivers, electric