YC

Yongqi Chen

Overall (2018): #87,966 of 503,207Top 20%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10046431 Deburring machine abrasive belt, chamfering-deburring machine that deburrs twice per rotation, and deburring method — 2018-08-14
D821459 Abrasive head of deburring-machine — 2018-06-26