tractor-towed implements; namely, cutters, mowers, box scrappers, disc harrows, rock rakes, middle busters, scoops, posthole diggers, fertilizer spreaders, lift boons, hail bail forks, pasture aerators, and grader blades

trailers; namely, cargo trailers, car hauler trailers, flat bed trailers, equipment trailers, gooseneck trailers, gooseneck pan trailers, gooseneck dump trailers, pintle hitch trailers, and stock trailers