ALEXANDRIA, Va., June 9 -- United States Patent no. D1,072,558, issued on April 29, was assigned to Shenzhen Fanpuguizhen E-Commerce Co. Ltd. (Guangdong, China).
"Knock box" was invented by Zhaoyang Tian (Guangdong, China).
The patent was filed on May 13, 2024, under Application No. D/941,936.
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