ALEXANDRIA, Va., July 14 -- United States Patent no. D1,135,270, issued on July 14, was assigned to Zhejiang Prulde Electric Appliance Co. Ltd. (Zhejiang, China).
"Vacuum cleaner" was invented by Chenghao Yang (Zhejiang, China).
The patent was filed on Dec. 12, 2024, under Application No. D/978,467.
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