23 POWERED, RIDING, AND GANG LAWNMOWERS; GRASS AND LEAF CATCHERS; LAWN EDGERS AND TRIMMERS; TURF AERATORS AND RENOVATORS; ROTARY TILLERS; SULKIES FOR POWERED MOWERS; POWERED SNOW BLOWERS AND THROWERS; LEAF MULCHERS; GASOLINE ENGINES; AND TRACTORS AND ATTACHMENTS THEREFOR-NAMELY, LAWN-MOWERS, SNOW THROWERS, UTILITY TRAILER CARTS, BULLDOZER BLADES, SICKLE BARS, LEAF SWEEPERS, LAWN ROLLERS, LOADERS, AGRICULTURAL IMPLEMENTS, NAMELY, PLOWS, TILLERS, HARROWS, CULTIVATORS, SCARIFIERS, RAKES, AERIFIERS, FERTILIZER SPREADERS, SEED PLANTERS AND SPRAYERS