ALEXANDRIA, Va., Dec. 9 -- United States Patent no. D1,104,704, issued on Dec. 9, was assigned to Shenzhen Hongling Smart Link Technology Co. Ltd (Shenzhen, China).
"Smart doorbell lock" was invented by Rui Dai (Shenzhen, China).
The patent was filed on Feb. 22, 2024, under Application No. D/929,530.
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