B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62D—MOTOR VEHICLES; TRAILERS
B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17