ALEXANDRIA, Va., Aug. 5 -- United States Patent no. D1,138,421, issued on Aug. 4, was assigned to COMFORT OFFICE FURNITURE Co. LTD GUANGDONG (Guangzhou, China).
"Chair backrest" was invented by Yao-Chuan Wu (Chiayi, Taiwan).
The patent was filed on July 2, 2024, under Application No. D/950,254.
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