ALEXANDRIA, Va., July 28 -- United States Patent no. D1,136,647, issued on July 28, was assigned to Zhongshan Bliss Medical Instrument Co. Ltd (Zhongshan, China).
"Folding stool" was invented by Kongzhang Mao (Zhongshan, China).
The patent was filed on April 24, 2024, under Application No. D/938,972.
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