ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,174, issued on Sept. 23, was assigned to Meng Zhang (Shenzhen, China).
"Rotating device and jigsaw puzzle board" was invented by Meng Zhang (Guangdong, China) and Xiaoling Che (Hubei, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotating device and a jigsaw puzzle table using the rotating device are disclosed in present disclosure. The jigsaw puzzle board includes a board assembly having a body portion and a kickstand coupled with the body portion, and at least one rotating device attached to the kickstand of the board assembly. When the kickstand is in a folded state, at least a part of the rotating device protrudes from a lower surface ...