ALEXANDRIA, Va., May 5 -- United States Patent no. D1,124,915, issued on May 5, was assigned to Shenzhen Dikai Industrial Co. Ltd. (Shenzhen City, China).
"Diamond measuring ruler" was invented by Xiuling Zhu (Shenzhen City, China) and Te-Yu Kao (Shenzhen City, China).
The patent was filed on Aug. 14, 2024, under Application No. D/957,460.
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