ALEXANDRIA, Va., Feb. 19 -- United States Patent no. D1,062,236, issued on Feb. 18, was assigned to Qin Zhong (Chengdu, China).
"Toothbrush head" was invented by Qixiang Yang (Mianyang, China).
The patent was filed on Sept. 4, 2024, under Application No. D/961,040.
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