Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797595 | Electrodeless low-pressure discharge lamp having a straight exhaust tube fixed on a conical stem | — | 1989-01-10 |
HJ
Henricus J. J. M. De Jong
Overall (1989): #107,122 of 140,708Top 80%
1
Patents 1989