Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810466 | Heat resistance Ni--Cr--W--Al--Ti--Ta alloy | Ju-Hee Choi | 1989-03-07 |
CL
Chong Kun Lee
Overall (1989): #126,141 of 140,708Top 90%
1
Patents 1989