ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,274, issued on May 13, was assigned to Kubota Corp. (Osaka, Japan).
"Tractor" was invented by Katsumi Yanagihara (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tractor includes a three-point link mechanism to which a work apparatus is to be attached so as to be able to move upward and downward, a hydraulic drive to perform a swing operation to swing the three-point link mechanism, a load receiver to swing in response to a tow load being applied from the work apparatus when the work apparatus performs ground work while being towed by the vehicle body, and a link mechanism to transmit an amount of operation for the swing operation to t...