ALEXANDRIA, Va., March 31 -- United States Patent no. D1,120,733, issued on March 31, was assigned to ZHONGSHAN EKAR UPING HOUSEWARE Co. LTD. (Zhongshan City, China).
"Door switch" was invented by Jianghua He (Zhongshan City, China), Guozhu Feng (Zhongshan City, China) and Xinliang Ouyang (Zhongshan City, China).
The patent was filed on June 28, 2021, under Application No. D/796,931.
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