Wheelchairs; vessels and their parts and fittings, namely seats of vessels; aircraft and their parts and fittings, namely seats of aircraft; railway rolling stock and their parts and fittings, namely seats of railway cars; automobiles and their parts and fittings, namely seats of automobiles, seat covers of automobiles, seat belts of automobiles, safety seats for children for automobiles, air bags or safety devices of automobiles, head-rests for seats of automobiles, security belts for seats of automobiles, seat armrests of automobiles, seat frames of automobiles, reclining devices for seats of automobiles and seat cushions of automobiles; two-wheeled motor vehicles, bicycles and their parts and fittings, namely seats of two-wheeled motor vehicles or bicycles