ALEXANDRIA, Va., Nov. 3 -- United States Patent no. D1,156,788, issued on Nov. 3, was assigned to QINGDAO NEWBIT INDUSTRIAL Co. LTD (Qingdao, China).
"Combination ramp" was invented by Lijun Hu (Qingdao, China).
The patent was filed on Oct. 24, 2022, under Application No. D/857,617.
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