ALEXANDRIA, Va., Sept. 3 -- United States Patent no. D1,091,725, issued on Sept. 2, was assigned to Guangzhou Qiji Technology Co. Ltd. (Guangzhou, China).
"Toy building block set" was invented by Yu Chen (Guangzhou, China), Yu Zhu (Guangzhou, China) and Zhenxiang Yuan (Guangzhou, China).
The patent was filed on Aug. 7, 2023, under Application No. D/909,522.
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