(under the class definition) Device comprising a surface element upon which a workman is supported.
SEE OR SEARCH CLASS
14, Bridges,
69.5+, for a ramp between disassociated bases.
52, Static Structures (e.g., Building),
177+, for a residual building structure with a wear resisting or friction increasing traffic carrying surface and subclasses 262+ for a barrier, e.g., ceiling floor or roof, resting on a vertical structure. 280, Land Vehicles,
