ALEXANDRIA, Va., March 24 -- United States Patent no. D1,120,544, issued on March 24, was assigned to SHENZHEN PUDU TECHNOLOGY Co. LTD. (Shenzhen, China).
"Floor cleaning machine" was invented by Simin Huang (Shenzhen, China) and Zhiwei Qin (Shenzhen, China).
The patent was filed on Dec. 2, 2024, under Application No. D/975,751.
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