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Der-Jiuh Jan

📍 Lo Wu, CN: #4,358 of 7,906 inventorsTop 60%
Overall (All Time): #2,571,492 of 4,157,543Top 65%
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Patent #TitleCo-InventorsDate
11597627 Wire retracting device YUN-KAI YU, Chang-Cheng Lin, Kuo-Kuang Liu 2023-03-07