YM

Youxian Ma

📍 Hanshan District, CN: #8 of 27 inventorsTop 30%
Overall (All Time): #3,188,733 of 4,157,543Top 80%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8607799 Male chastity device — 2013-12-17