(under subclass 400) Devices in which there is a leading and trailing vehicle (with respect to the direction of motion), the motive power being supplied by the trailing vehicle.
(1) Note. This subclass takes patents claiming a device whose primary disclosed function is to push another vehicle, or patents claiming a fending device of general utility, but having a claim limited to the function of pushing another vehicle.
SEE OR SEARCH CLASS
213, Railway Draft Appliances,
220+, for railway car end bumpers or buffers, and subclass 224 for means (e.g., rods) mounted on a railway car which can be used to push a car located on a parallel track.
293, Vehicle Fenders, for fenders of general utility which may be incidentally disclosed as usable to push vehicles.