ALEXANDRIA, Va., June 6 -- United States Patent no. D1,072,235, issued on April 22, was assigned to Shenzhen Keeway Technology Co. Ltd (Shenzhen, China).
"Ventilating fan" was invented by Guoqiang Bao (Shenzhen, China).
The patent was filed on Feb. 21, 2023, under Application No. D/871,460.
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