7 Air condensers, electricity generators, air supply apparatus with pressure converters, namely, air turbines, other than for land vehicles; compressors for machines, air compressors; blowing machines for the compression, suction and transport of air; conveyors being machines, band conveyors being machines, belt conveyors, hoist chains in the nature of wire hoists, freight elevators, elevators, lifting apparatus, namely, elevating work platforms and passenger elevators; loading and unloading handling machines, hoists, loading ramps in the nature of powered ramps to move luggage on to airplanes; belt conveyors for loading of hold baggage; belt luggage loaders in the nature of belt conveyors to move luggage on to airplanes; pumps for heating, ventilation and air-conditioning apparatus in the nature of pumps for cooling engines; air supply apparatus with pressure converter for airplanes in the nature of air suction machines; motor starters for uniflow airplane reactors; aircraft-washing apparatus in the nature of aircraft vehicle washing machines; snow plows; lifting work platforms for loading and unloading or maintaining aircraft