ALEXANDRIA, Va., March 5 -- United States Patent no. D1,065,731, issued on March 4, was assigned to GUANGDONG DEERMA TECHNOLOGY Co. LTD. (Guangdong, China).
"Vacuum cleaner" was invented by Wenwu Li (Guangdong, China) and Long Chen (Guangdong, China).
The patent was filed on Sept. 28, 2023, under Application No. D/518,863.
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