ALEXANDRIA, Va., April 7 -- United States Patent no. D1,121,415, issued on April 7, was assigned to SHENZHEN CHENBEI TECHNOLOGY Co. LTD. (Shenzhen, China).
"Door lock" was invented by Xueer Wang (Shenzhen, China) and Xinran Tanzou (Shenzhen, China).
The patent was filed on Jan. 30, 2024, under Application No. D/926,364.
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