ALEXANDRIA, Va., March 19 -- United States Patent no. D1,067,131, issued on March 18, was assigned to Qingdao Mihong Machinery Co. Ltd. (Qingdao, China).
"Trailer hook" was invented by Yadan Liu (Shandong, China).
The patent was filed on Dec. 23, 2024, under Application No. D/980,089.
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