ALEXANDRIA, Va., April 15 -- United States Patent no. D1,122,543, issued on April 14, was assigned to Beijing Roborock Technology Co. Ltd. (Beijing).
"Washing and drying machine" was invented by Zhuo Li (Nanjing, China), Fanwei Meng (Nanjing, China) and Wei Zhang (Nanjing, China).
The patent was filed on Dec. 12, 2024, under Application No. D/523,542.
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