Abrasive wheels for power-operated grinders; Agricultural machinery and attachments therefor, namely, rotary mowers, box scrapers, and three-point attachments; Agricultural seed planting machines, namely, sowers; Air powered tools, namely, drills; Lawn mower blades; Mechanical lawn mowers; Mowing and reaping machines; Non-motorized walk-behind reel-type lawn mower; Power-operated grinding wheels; Wire brushes for use in machines