Automatic swimming pool cleaners and parts therefor; Brushes for vacuum cleaners; Cleaning appliances utilizing steam; Coffee extracting machines; Cordless vacuum cleaners; Dust exhausting installations for cleaning purposes; Dust filters and bags for vacuum cleaners; Dust removing installations for cleaning purposes; Dust separators; Electric vacuum cleaners and their components; Filters and purifiers for machines, namely, filters and purifiers for removing contaminants from gases used in th...