ALEXANDRIA, Va., Jan. 13 -- United States Patent no. D1,109,242, issued on Jan. 13.
"Educational toy" was invented by Wanping Li (Guangzhou, China), Danhua Zhu (Guangzhou, China) and Daojie Sun (Guangzhou, China).
The patent was filed on June 28, 2024, under Application No. D/949,761.
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