Packaging machines, in particular for packaging food and luxury goods, cigarette-packaging machines, cardboard packers, foil-covering machines, paper-handkerchief-packaging machines, tobacco pouch packers; conveyors, belt, roller, chain and overhead conveyors, all conveyors in particular for packaging machines and/or for transporting packaging materials; robots for loading and unloading packaging machines, containers, pallets and conveyors; gears, gear motors, couplings (other than for land vehicles); parts for the aforesaid machines, devices and units (included in class 7), in particular shafts, axles, bolts, levers, sprockets, transmission wheels, control apparatus, valves, pumps, pipes, foundations, hydraulic and pneumatic telescopic cylinders.;