QH

Qiulan Hu

Overall (All Time): #1,709,145 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12312864 Connecting rod stabilizing structure for herringbone ladder 2025-05-27
D1072281 Extension ladder 2025-04-22