(under subclass 423.1) Vehicles in which the trailer includes an inverted L or U shaped member the forward end of which carries an articulated connection at a higher elevation than the load body and in which the L or U shaped member may be disconnected, raised, or lowered from the trailer principally to enable the trailer to come closer to the ground for loading.
SEE OR SEARCH THIS CLASS, SUBCLASS:
425.2, for additional lifting means which guide and lift the gooseneck to attach it to the leading vehicle.
SEE OR SEARCH CLASS
414, Material or Article Handling,
481, for a self-loading vehicle with a lowerable trailer front end and where a ramp is claimed.