ALEXANDRIA, Va., Aug. 26 -- United States Patent no. D1,090,789, issued on Aug. 26, was assigned to HUAYAN MEIXIN MECHANICAL AND ELECTRICAL Co.LTD (Huaian, China).
"Water switch" was invented by Yujun Zhang (Jiangsu, China).
The patent was filed on March 16, 2022, under Application No. D/831,017.
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