(under subclass 137.502) Subject matter including strengthening means between the turnable axle and an elongated member which interconnects front and rear axles of the vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139, for a brace, known as a hound, which either (a) extends between a shaft or tongue and an articulated axle or (b) between a perch or reach and a rear axle.
140, for specific construction of an elongate member interconnecting front and rear axles of the vehicle, known as either a perch or reach.