12 Electric motors, for land vehicles; recuperation systems as parts of vehicles for energy recovery, consisting primarily of a recuperation brakes for land vehicles and also including power storage in the nature of power supplies; trailers; land vehicle parts, in particular axles and axle assemblies for trailer vehicles and busses; land vehicle parts, in particular axles and axle assemblies for trailer vehicles and busses, driven by electric drive motors; land vehicle parts in particular axles and axle assemblies for trailer vehicles and busses, equipped with recuperation systems consisting primarily of recuperation brakes for land vehicles and also including power storage in the nature of power supplies as parts of vehicles for energy recovery; suspension systems for trucks and trailers, mainly consisting of brackets, bearing bushings, radius arms, axles, axle connecting elements, air springs, leaf springs and shock absorbers; leaf spring axles and leaf springs being land vehicle suspension parts; land vehicle parts, namely, air spring axles and air spring aggregates for suspension components; suspension systems for trucks, trailer vehicles and busses, mainly consisting of air springs, leaf springs, radius arms, brackets, axles, axle connecting elements, bearing bushes, shock absorbers; brakes and brake systems for land vehicles