SQ

SHUHUI QIAN

Overall (All Time): #1,835,941 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11255391 Quick release device of brake cylinder 2022-02-22
9457732 Detachable seat back hanger adapter 2016-10-04