7 Outdoor landscape maintenance equipment and light earth working machinery, namely, mowers and riding lawn mowers and machines for grading, leveling, scarifying, slicing, aerating, boring, seeding, fertilizing, rolling, trenching and raking; suction type pick-up machines for leaves, grass cuttings and debris; power-operated turf and yard care machines, namely, aerators, stump grinders, log splitters, sweepers, mulchers, edgers, trimmers, sand trap and sports field groomers, blowers and combination blowers and vacuums for leaves and debris; greens roller machines for use on golf greens, tennis courts and bowling greens; snow throwers, snow removal machines, namely, snow blowers, snow plows, plow blades for snow plows and electric rotary snow brooms; turf and yard care machines, namely, vehicle-mounted, power-operated sprayers for applying fertilizers or pesticides to turf; top dressing machines, namely, vehicle-mounted mechanical spreaders for distributing dressing material upon turf; and structural parts of the foregoing