ALEXANDRIA, Va., June 9 -- United States Patent no. D1,072,489, issued on April 29, was assigned to Shenzhen Global Well Technology Co. Ltd. (Shenzhen, China).
"Electric toothbrush head" was invented by Baohua Chen (Heyuan, China).
The patent was filed on Nov. 11, 2022, under Application No. D/859,599.
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