ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,082, issued on March 24.
"Engaging structure for hand tool" was invented by Tsan-Chang Lee (Taichung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An engaging structure for a hand tool includes a main body. The main body has a mounting element. The mounting element includes multiple first recessed portions, multiple second recessed portions, and multiple locking sides. Each of the first recessed portions is provided with multiple grooves. Each of the first recessed portions is provided with at least three grooves. Each of the second recessed portions is provided with a first curved face. Each of the locking sides is arranged between t...