Airsprings for cushioning driver's seats; backrests for vehicle seats; covers for vehicle seats; cushions for vehicle seats; head-rests for vehicle seats; protective covers for vehicle seats (fitted); protective covers for vehicle seats (shaped); safety belt installations for the seats of vehicles; safety belts for vehicle seats; safety harnesses for vehicle seats; safety restraints (for vehicle seats); seat cushions for the seats of vehicles; seats for automotive vehicles; seats for vehicles; shaped linings for vehicle seats