(under subclass 210) Vehicles in which the propelling means is constructed to intermittently contact the surface over which the vehicle travels to push the vehicle along.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12.11, for sleds similarly propelled.
SEE OR SEARCH CLASS
180, Motor Vehicles,
187, for a motor vehicle which includes one or more ski-like or runner members and wherein the vehicle is provided with at least one surface-engaging propulsion element and further wherein the element has a shuffling movement along the surface which supports it; and subclass 8.1 for a motor vehicle having a special driving device in the nature of a stepper.
