ALEXANDRIA, Va., Jan. 28 -- United States Patent no. D1,110,203, issued on Jan. 27, was assigned to Zhejiang Mateside Medical Devices Technology Co. Ltd. (Hangzhou, China).
"Rolling walker" was invented by Zhikuo Liu (Hangzhou, China), Liujing Jiang (Hangzhou, China), Yuping Wang (Hangzhou, China) and Jing Wang (Hangzhou, China).
The patent was filed on Aug. 20, 2024, under Application No. D/958,580.
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