ALEXANDRIA, Va., Oct. 27 -- United States Patent no. D1,155,939, issued on Oct. 27, was assigned to WYBOTICS Co. LTD (Tianjin, China).
"Pool cleaning device" was invented by Qian Yu (Tianjin, China), Pu Cen (Tianjin, China), Weiping Zhang (Tianjin, China), Rongkai Yan (Tianjin, China) and Yueming Wang (Tianjin, China).
The patent was filed on June 16, 2023, under Application No. D/895,024.
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