Aeronautical apparatus, machines and appliances, in the nature of structural parts, namely, fuselage, wing, propeller, landing system, braking system, door system, fuel system, comprising fuel feed system, seats, vehicles and apparatus for locomotion by air, namely, aircraft, airplanes, helicopters, hybrid aircraft, heavier-than-air flying machines, either man-carrying or remotely piloted; parts for the aforesaid goods, namely, structural replacement parts and fittings

Repair and maintenance of aircraft and helicopters; upgrading of aircraft and helicopters, namely, retrofitting of aircraft, helicopters, heavier-than-air flying machines and hybrid aircraft