Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841195 | Discharge lamp having a yttrium aluminum garnet discharge envelope | Gijsbertus De With | 1989-06-20 |
HD
Hendricus J. A. Van Dijk
Overall (1989): #105,999 of 140,708Top 80%
1
Patents 1989