ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,819, issued on Aug. 12.
"Liftable and rotatable jigsaw puzzle table" was invented by Zhiguang Tian (Zhongshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liftable and rotatable jigsaw puzzle table includes a jigsaw bottom plate, a center member provided on the bottom of the jigsaw bottom plate, a sleeve installed in the middle of the center member, a fixed member rotatably installed at bottom of the jigsaw bottom plate, a sleeve rod provided within the sleeve and installed on the top of the fixed member, a ball bearing rotatably provided on the bottom of the sleeve, an annular groove provided at the center member, a plurality of position...