Aerating pumps for aquaria; Aerators being machines; Air compressors; Apparatus for aerating water; Belt conveyors; Curtain drawing devices, electrically operated; Electronically and power-operated tools, namely, pullers and components therefor, nut splitters, extractors, separators, spanners and coil spring compressors; Generators for wind turbines; Hydraulic pumps; Mine borers; Submersible pumps; Tool grinding machines; Winding machines, packaging machines, conveying machines, particularly ...