ALEXANDRIA, Va., Sept. 8 -- United States Patent no. D1,147,640, issued on Sept. 8, was assigned to Xi'an Aichuangjia Helper Intelligent Technology Co. Ltd (Xi'an, China).
"Mop bucket" was invented by Jing Su (Xi'an, China).
The patent was filed on Dec. 30, 2024, under Application No. D/981,354.
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