ALEXANDRIA, Va., Aug. 20 -- United States Patent no. D1,089,544, issued on Aug. 19.
"Part of cut-off valve" was invented by Feng Zhou (Zhejiang, China), Guanghua Feng (Zhejiang, China), Feng Lou (Zhejiang, China) and Pengfei Zhou (Zhejiang, China).
The patent was filed on Aug. 20, 2024, under Application No. D/522,660.
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