ALEXANDRIA, Va., Nov. 25 -- United States Patent no. D1,102,756, issued on Nov. 25, was assigned to Dongguan Zhenfa Brush Manufacturing Co. Ltd. (Dongguan, China).
"Brush" was invented by Chonggao Lu (Nanning, China).
The patent was filed on June 1, 2023, under Application No. D/877,044.
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