ALEXANDRIA, Va., July 16 -- United States Patent no. D1,084,120, issued on July 15, was assigned to Shenzhen 3D Puzzle Technology Co. Ltd. (Shenzhen, China).
"Book end" was invented by Jianqiang Zhou (Shenzhen, China).
The patent was filed on Sept. 6, 2024, under Application No. D/961,743.
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