77293744
Oct 2, 2007
Sep 8, 2009
Electric and hydraulic mechanisms to assist in maneuvering and hitching a trailer, consisting of a hydraulic cylinder, an electric motor and jackscrew, or a linear actuator for raising and lowering a trailer, hydraulic wheels or track motors or electric wheel motors with chain reduction for maneuvering a trailer, and a handheld remote control or detachable handheld control module for operating and controlling the various mechanisms
Machinery