ALEXANDRIA, Va., March 26 -- United States Patent no. D1,068,190, issued on March 25, was assigned to Xiamen Nano Technology Co. Ltd (Fujian Pilot Free Trade Zone, China).
"Cleaning head of vacuum cleaner" was invented by Shufang Tu (Fujian Pilot Free Trade Zone, China).
The patent was filed on July 11, 2024, under Application No. D/951,866.
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