XL

Xiu-Feng Liu

EC Eversafety Precision Industry (Tianjin) Co.: 2 patents #3 of 7Top 45%
Overall (All Time): #2,074,470 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8479544 Auto-unlock assembly for a tubular lock Ming Chai 2013-07-09
7870772 Exterior lever lock device with a clutch assembly Ming GUO 2011-01-18