ALEXANDRIA, Va., July 23 -- United States Patent no. D1,085,237, issued on July 22, was assigned to 3D PRO TECHNOLOGIES Ltd. (Tsim Sha Tsui KL, Hong Kong).
"Foldable felt board" was invented by Hu Baoguang (Shenzhen, China).
The patent was filed on July 26, 2023, under Application No. D/898,365.
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