ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,498, issued on Dec. 30.
"Jigsaw puzzle table" was invented by Yu Liu (Heping County, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A jigsaw puzzle table includes three groups of table boards, each group of the table boards having an upper table board and a lower table board; the left, right and bottom sides of the upper table boards are all provided with latch grooves, the left, right and upper sides of the lower table boards are all provided with latch grooves, a latch is disposed in every two opposite latch grooves, a limiting block is fixedly connected in each latch groove, two limiting grooves are provided on the top of each latch, a plur...