ALEXANDRIA, Va., July 28 -- United States Patent no. D1,136,871, issued on July 28, was assigned to Shenzhen Lecheng Technology Co. Ltd (Shenzhen, China).
"Combination lock" was invented by Wenhui Zeng (Heyuan, China).
The patent was filed on July 16, 2025, under Application No. D/013,501.
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