ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,044, issued on May 26, was assigned to Shenzhen Manwei Internet Co. Ltd (Shenzhen, China).
"Positioning device" was invented by Yiyao Zhou (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A positioning device includes a support member, a turntable, a sliding block, and an elastic locking device. The turntable is rotatably mounted on the support member. The sliding block is movably mounted on the support member and movable between a first position and a second position. The elastic locking device is mounted on the sliding block. When the sliding block is at the first position, the elastic locking device engages with the turntable. When ...