Agricultural machines, namely, cultivators, harvestors, disk harrows, seeders, rotary harrows, stubble cultivator, agricultural scalper, roller, seed drill, front hopper, spreaders, mounted spreaders; agricultural machines for cultivating the soil; agricultural machines for soil cultivation; towed agricultural implements, namely, harrows; towed agricultural implements, namely, disc harrows; towed agricultural implements, namely, rotary harrows; agricultural machines for tedding and windrowing grass; towed agricultural implements, namely, fertilizer distributors; machines and instruments to spread manures, other than those operated by hand; agricultural machines, namely, sowers; towed agricultural implements, namely, sowers; towed agricultural implements, namely, fertilizer spreaders; trailer-mounted agricultural implements, namely, seeders, sowers, rotary harrows, stubble cultivator, agricultural scalper, roller, trailed spreaders; disc blades, disc billers, and drums being soil-conditioning parts for use with agricultural implements other than hand-operated; towed agricultural machines, namely, fertilizer distributors, mowers, and harvesters; agricultural machine, namely agricultural burier; agricultural implements other than hand-operated, namely, seed drills and coulters; agricultural machines for sowing seeds; agricultural machines for fertilization, other than hand-operated implements; agricultural machines for plowing, namely, plows and backhoes; agricultural machines for seed planting; towed agricultural implements, namely, rollers; tractor-towed harrow machines