The manufacture and repair of agricultural machinery and equipment for use in the preparation and maintenance of the soil, in planting and harvesting of the crop, in preparing crops for market on the farm, or in dairy farming and live-stock raising; for use in performing other farm operations and processes, such as planting, seeding, fertilizing, cultivating, harvesting; ploughs, harrows, stalk cutters, milking machines, farm tractors, etc.. Excluded is the manufacture of agricultural hand tools, such as rakes, hoes, clippers, hand lawn movers, which is classified in group 3811 (Manufacture of cutlery, hand tools and general hardware).