Vehicle seats; airplane seats; seats for railway cars; seats for water vehicles; seats for motor vehicles; ejector seats for vehicles; ejector seats for aircraft; child seats for vehicles; armrests for vehicles; cushions for vehicle seats; cushions for aircraft seats; seat covers for vehicles; safety seats for vehicles; safety seats for children, for vehicles; trays for vehicle seats; backrests for vehicle seats; fittings for vehicle seats; sub-systems for vehicle seats; head-rests for vehicle seats; vehicle booster seats for children; portable seats for children adapted for vehicles; seat belts for vehicles; restraint straps for vehicle seats; security harness for vehicle seats; safety belts for vehicle seats; compartmentalized bags specially designed for vehicle seats; storage spaces attached to seat back specially adapted for use in vehicles; storage boxes intended for use in vehicles; storage systems for use in motor vehicles; vehicle seats with massage function; airplane seats with massage function; devices for adjusting the height of seats for passengers; sleeping berths for vehicles.