Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4647820 | Discharge lamp ignition and supply circuit having a PTC resistor | Hubertus M. J. Chermin | 1987-03-03 |
| 4223247 | Metal vapor discharge lamp | Cornelis A. J. Jacobs | 1980-09-16 |