Machines and machine tools; motors and engines (except for land vehicles); agricultural implements other than hand-operated; pumps (machines); submersible pumps; pumps for use in agriculture (machines); mixing apparatus (powered machines); aerating pumps; water pumps for aerating ponds; liquid aerators (apparatus); liquid aerators (machines); aeration pumps for bodies of water; aeration pumps for ponds; aerators; electric pumps; hydraulic pumps; compressed air pumps