ZB

Zhi-Wei Bai

Overall (All Time): #3,299,054 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7775294 Percussion toggle device of a percussion driller Xi Ren, Ran Xia 2010-08-17