Air condensers; Centrifugal pumps; Dust exhausting installations for cleaning purposes; Electrically-operated brushes, being parts of machines; Filters being parts of engines; Mechanized livestock feeders; Pumps as parts of machines, motors and engines; Pumps for counter-current swimming; Saw benches being parts of machines; Steam engines, not for land vehicles; Transmissions for machines; Vacuum cleaners; Valves being parts of machines; Water heaters being parts of machines; Woodworking saw-...