Agricultural machines; agricultural machines for cultivating the soil; agricultural machines for soil cultivation; harrows [towed agricultural implements]; disc harrows [towed agricultural implements]; rotary harrows [towed agricultural implements]; agricultural machines for tedding and windrowing grass; fertilizer distributors [towed agricultural implements]; machines and instruments to spread manures, other than those operated by hand; sowers [agricultural machines]; sowers [towed agricultural implements]; fertilizer spreaders [towed agricultural implements]; trailer-mounted agricultural implements; soil-conditioning parts for use with agricultural implements other than hand-operated; towed agricultural machines; injectors [agricultural machine]; agricultural implements other than hand-operated; agricultural machines for sowing seeds; agricultural machines for fertilization; agricultural machines for plowing; agricultural machines for seed planting; rollers [towed agricultural implements]; harrow machines