ALEXANDRIA, Va., Oct. 21 -- United States Patent no. D1,097,582, issued on Oct. 14, was assigned to SHANGHAI HEISR INTELLIGENT TECHNOLOGY Co. LTD (Shanghai).
"Brush head for electric toothbrush" was invented by Mao Zhao (Shanghai) and Yaoqing Zhu (Shanghai).
The patent was filed on Nov. 18, 2022, under Application No. D/860,367.
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