Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804889 | Electrode feedthrough assembly for arc discharge lamp | Roger A. Johnson, John J. Gutta | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804889 | Electrode feedthrough assembly for arc discharge lamp | Roger A. Johnson, John J. Gutta | 1989-02-14 |