DJ

Dongri JIN

Overall (2024): #482,703 of 561,600Top 90%
1
Patents 2024

Issued Patents 2024

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12152514 Variable valve actuation device for engine Tengfei Ji, Hongqiang Yu, Wei Shi, Jian SONG 2024-11-26