Doors made primarily or wholly of metal, namely swinging doors, folding doors, sliding doors, and revolving doors; doors made primarily or wholly of metal, namely swinging doors, folding doors, sliding doors, and revolving doors for catching, shielding and diverting wind at entrances to buildings

Electric and electronic building door opening systems comprised of magnetic card readers, magnetically encoded cards, and push buttons and parts thereof, all sold as a unit; computer circuits for use in building door opening systems