ALEXANDRIA, Va., Feb. 19 -- United States Patent no. D1,062,410, issued on Feb. 18, was assigned to DONGHE BIOTECHNOLOGY (SHENZHEN) Co. LTD. (Shenzhen, China).
"Knife sharpener" was invented by Bohua Wen (Shaoguan, China) and Xiaocui He (Huizhou, China).
The patent was filed on Oct. 18, 2022, under Application No. D/856,867.
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