ALEXANDRIA, Va., April 9 -- United States Patent no. D1,069,959, issued on April 8, was assigned to Zhejiang Mersco Industry & Trade Co. Ltd. (Jinhua, China).
"Trampoline" was invented by Xudong Huang (Hangzhou, China), Ling Tao (Hangzhou, China) and Caihua Zhang (Hangzhou, China).
The patent was filed on Nov. 18, 2024, under Application No. D/973,734.
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