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Changchun SHI

OPPO: 1 patents #551 of 853Top 65%
Overall (All Time): #2,387,434 of 4,157,543Top 60%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12222772 Rotating shaft mechanism and foldable electronic device Zekuan Zheng, Qian Zhang 2025-02-11