YZ

Yongzhang Zhen

Overall (All Time): #3,928,601 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4833366 High performance hollow cathode lamp Tengzhao Wu, Yingqi Gao 1989-05-23