ALEXANDRIA, Va., July 9 -- United States Patent no. D1,082,333, issued on July 8, was assigned to Dongguan Zhenfa Brush Manufacturing Co. Ltd. (Dongguan, China).
"Cleaning brush" was invented by Chonggao Lu (Nanning, China).
The patent was filed on June 1, 2023, under Application No. D/877,043.
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