8 [ Hand-operated tools and implements for treating floors and walls in and on buildings, for removing floor coverings and laying floors, parquets, tiles, concrete and screed, namely, applicator guns for adhesives, hand-operated applicator guns for paste, hand-operated rollers used to scrape paint off of floors and walls, blade agitators, namely, hand-operated blades used in mixing adhesives, pastes and waxes, paddle agitators, namely, hand-operated paddles used in mixing adhesives, pastes and waxes, rakes, ladles; hand-operated tools and implements for treating floors and floor coverings, in particular knives, hand grinders, scrapers, trowels, doctor blades for spreading adhesives, pastes and waxes, scribers, marking tools, spatulas; hand tools and implements, in particular, blades for hand saws, shears, carpet knives, scaling knives, trowels and spatulas for applying leveling compounds, primers and adhesives on floors, walls and ceilings; hand tools, namely, manually-operated grinding wheels for parquet ]