ALEXANDRIA, Va., July 14 -- United States Patent no. 12,677,730, issued on July 14, was assigned to QINGDAO HUATIAN HAND TRUCK Co. LTD. (Qingdao, China).
"Fertilization cart" was invented by Zhijun Liu (Qingdao, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a fertilization cart, including a hopper for containing the fertilizer, a first turntable, and a second turntable, where the first turntable and the second turntable are located below the hopper and arranged in correspondence with discharge openings on the hopper. Spreader openings are formed on either of the first turntable and the second turntable, and when the spreader opening is communicated with the discharge opening after rotatin...