ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,766,673, issued on Oct. 20.
"Universal adjustable wrench" was invented by Chiung Ju Chen (Taichung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A universal adjustable wrench includes a wrench body, a worm, and a movable jaw. The wrench body includes a handle and a first jaw head. The first jaw head has a worm groove and a slide surface. The slide surface has a rail groove and a fixed jaw having a first gripping surface. The worm is pivotally connected in the worm groove. The movable jaw is connected to the rail groove, and has a rack and a jaw body. The jaw body has a second gripping surface and a guide surface. The second gripping surfac...