ALEXANDRIA, Va., Dec. 9 -- United States Patent no. D1,105,664, issued on Dec. 9, was assigned to Ningbo Kechen Electrical Appliance Co. Ltd (Ningbo, China).
"Portable vacuum cleaner" was invented by Yuliang Zhang (Ningbo, China).
The patent was filed on Sept. 9, 2024, under Application No. D/961,971.
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