ALEXANDRIA, Va., Sept. 3 -- United States Patent no. D1,091,221, issued on Sept. 2, was assigned to Zhejiang Siwei Electric Co. Ltd. (Zhejiang, China).
"Electric grinder and base set" was invented by Changjiang Ding (Zhejiang, China).
The patent was filed on Sept. 23, 2024, under Application No. D/964,329.
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