ALEXANDRIA, Va., Sept. 17 -- United States Patent no. D1,093,803, issued on Sept. 16, was assigned to Qingdao Runbell Industrial Co. Ltd. (Qingdao, China).
"Trailer jack block" was invented by Xiaoxun Yang (Qingdao, China).
The patent was filed on Jan. 24, 2025, under Application No. D/987,531.
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