ALEXANDRIA, Va., April 15 -- United States Patent no. D1,121,971, issued on April 14.
"Toothbrush" was invented by Takanori Tsukimura (Naka-gun, Japan) and Utako Tsukimura (Kamisu, Japan).
The patent was filed on Nov. 18, 2024, under Application No. D/973,631.
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