(under subclass 51) Subject matter wherein the apparatus is large enough to substantially enclose the body of the user within its boundaries, while the user causes movement of the apparatus over a supporting surface, e.g., ground, floor, etc.
SEE OR SEARCH CLASS
280, Land Vehicles,
206+, for a wheeled land vehicle operated with by a user located within the wheel and used primarily for travel.
441, Buoys, Rafts, and Aquatic Devices,
78, for a spheroidal or wheel-like water walking device which encircles a user and is used primarily for travel.
