Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801323 | Method of making a discharge vessel for compact low-pressure discharge lamps | Lutz Klein, Ernst Panofski, Hans Schmidt, Josef Plischke | 1989-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801323 | Method of making a discharge vessel for compact low-pressure discharge lamps | Lutz Klein, Ernst Panofski, Hans Schmidt, Josef Plischke | 1989-01-31 |