ALEXANDRIA, Va., Feb. 26 -- United States Patent no. D1,063,582, issued on Feb. 25.
"Knife sharpener" was invented by Janne Joutsen (Espoo, Finland), Sami Lyytikainen (Espoo, Finland) and Teemu Kekalainen (Espoo, Finland).
The patent was filed on April 28, 2023, under Application No. D/520,777.
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