Services in the training of personnel in the operation of installations for lighting, heating, refrigerating, drying, ventilating, pollution control, grain storage facilities, machines and machine tools, scientific and electrical apparatus and instruments

Unwrought and partly wrought common metals and their alloys; anchors, rolled and cast building materials; rails and other metallic materials for railway tracks; chains except drivingchains for vehicles; cables and wires (non-electric); locksmiths' work; metallic pipes and tubes; steel balls; silos included in this class; metal paint spraying booths

Services in this class namely, designing lighting, heating refrigerating, drying, ventilating and pollution control installations, grain storage facilities, machines, machine tools, scientific and electrical apparatus and instruments, computer programmes and contracting computer programmes

Scientific, nautical, surveying and electrical apparatus andinstruments, weighing, measuring, signalling, metering, checking (supervision) and detection apparatus and instruments, including parts and fittings in this class for all of the aforesaid goods; computer programmes

Installations for lighting, heating, refrigerating, drying, ventilating, including apparatus for conditioning air to other gases by heating, cooling, humidifying and dehumidifying, heat or moisture exchange and cleaning; channels and ducts incorporated in such apparatus; airborne conveying installations; heat exchangers not being parts of machines; warm air furnaces; fans, not for personal use; blowers, ventilators, air grilles, air valves, air dampers; air diffusers, dry or wet filters and separators, all being parts of the aforementioned installations; electrostatic precipitators; drying in the class for lumber, veneer, board sheets, cellulose, and other fibrous materials including paper, cardboard, grain; flash-dryers.