7 agricultural, horticultural and forestry machines, and attachments therfor; namely, combines, mowers, cultivators, plows, harrowers, forestry crawlers, hay and grain harvesters, combine harvesters and threshers, swathers, windrowers, drills and planters; grinding machines; elevators; civil engineering and earth moving machinery; namely, excavators, loaders, dozers, fork lifts, hydraulic motors not for use in land motor vehicles, hydraulic rams, air compressors, lifting jacks, and pipe and cable-laying apparatus; namely, winches, hoists and cranes; and parts and accessories therefor; namely, bowl scrapers, dozer blades, chains, buckets, grabs, rippers, soil penetrating teeth, cabs, seats, seat cushions and protective covers