ALEXANDRIA, Va., March 17 -- United States Patent no. D1,118,722, issued on March 17, was assigned to Shenzhen Hingin Technology Co. Ltd. (Shenzhen, China).
"Engraving machine" was invented by Chenxu Liu (Shenzhen, China), Lei Zhou (Shenzhen, China), Ping Zhu (Shenzhen, China), Yuanhui Zou (Shenzhen, China), Tan Chen (Shenzhen, China) and Penghui Wei (Shenzhen, China).
The patent was filed on June 26, 2024, under Application No. D/949,203.
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