ALEXANDRIA, Va., Sept. 8 -- United States Patent no. D1,146,354, issued on Sept. 8, was assigned to SHENZHEN LONGQUANSHAN ART TECHNOLOGY Co. LTD. (Shenzhen, China).
"Cleaning tool" was invented by Ye Feng (Shenzhen, China).
The patent was filed on May 7, 2025, under Application No. D/002,656.
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