ALEXANDRIA, Va., Oct. 28 -- United States Patent no. D1,099,219, issued on Oct. 21.
"Toy building block set" was invented by Yu Chen (Guangzhou, China), Yu Zhu (Guangzhou, China) and Qitong Jia (Guangzhou, China).
The patent was filed on Jan. 8, 2024, under Application No. D/521,803.
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