Rail vehicles, buses, trolley buses, trailers for trucks andpassenger cars, goods vehicles, including motor lorries and motor trucks, and cross-country vehicles as well as airport transort vehicles, including the superstructures thereof; watercraft; bogies for road and rail vehicles; brakes and position-controlled foot-boards (steps) for rail and road vehicles; couplings (articulations) for the interconnection of vehicle bodies; doors for land vehicles; aircraft and watercraft; mechanical or manual drives for vehicle doors; undercarriages (running gear units) and cabins for suspension railways; passenger seats for vehicles; buffers for rail vehicles; mechanical devices for the spring-mounted(resilient) accommodation of couplings for rail and road vehicles; tow (trailer) couplings for rail, road and cross-country vehicles; brackets for road andcross-country vehicles for the attachment of trailer Couplings as well as for the protection against the underrunning of the aforementioned vehicles; semitrailer couplings for road-country vehicles; towing rods and towing scissors for salvaging and towing off vehicles; structurally integrated parts of all the aforementioned goods made of metal, plastics and/or wood