ALEXANDRIA, Va., July 7 -- United States Patent no. D1,132,598, issued on July 7, was assigned to Ningbo Dianjian Trading Co. Ltd. (Zhejiang, China).
"Toothbrush head" was invented by Ping Chen (Ningbo, China).
The patent was filed on Oct. 21, 2024, under Application No. D/969,071.
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