(under the class definition) Subject matter wherein (a) the rigid or semirigid means for limiting the path of travel of the load-underlying support surface of an elevator is
attached to or formed in the outer surface of a wall forming the perimeter of a building and (b) the load-underlying support surface is completely located, at all times, beyond the perimeter of the building.
SEE OR SEARCH CLASS
182, Fire Escape, Ladder, or Scaffold,
141+, for a platform having elevating or lowering means and subclass 37 for a similar platform which also traverses horizontally along a track.
