Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4277717 | Low-pressure sodium vapor discharge lamp | Willem Van Benthem | 1981-07-07 |
| 4260934 | Electric device provided with a switch which is designed as a discharge tube | Gijsbert Kuus, Cornelis A. J. Jacobs, Herman Smulders | 1981-04-07 |