ALEXANDRIA, Va., March 26 -- United States Patent no. D1,067,640, issued on March 25, was assigned to Ranir LLC (Grand Rapids, Mich.).
"Electric toothbrush" was invented by Yong Sun Simon Kang (Los Angeles) and Bryan J. Dishon (Alto, Mich.).
The patent was filed on Jan. 10, 2023, under Application No. D/882,057.
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