7 Agricultural machines and machine tools, implements other than hand-operated, and machines for agriculture, livestock farming, horticulture, forestry, gardening and cultivation for pleasure, especially cultivating machines, namely, toothed harrows, rotary harrows, rotary tillers, plows, cultivators, disc harrows, crushing machines, mixing machines, tillers, planting machines, transplanters, seeders, seed drills, mechanical seeders, pneumatic seeders, single-seeders, and seed drills combined with cultivating machines; hay making machines, namely, tedders, windrowers, combined tedder-windrowers, raking machines, windrower gathering machines, windrow turning machines, haycutters, cutting bars, hay cutting and packaging machines, grass aerating mowers, and haycutter-windrowers; harvesting machines, namely, harvesters, harvester-threshers, forage balers, bale wrappers, and forage blowers; machines for the treating of crops, namely, sprayers and sprays; lawnmowers; scrub cutters; verge mowers; conveyors; elevators; machines for preparing feed for cattle, namely, silo unloaders, fodder unloader-distributors, and fodder mixer-feeders; bedding machines, namely, straw blowers; machines for fertilization, namely, fertilizer spreaders and manure spreaders; earth moving machines; as well as structural parts and components of these machines