Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5528117 | Electronic lamp ballast with driving frequency between load resonant frequencies | Arnold Willem Buij, Paul R. Veldman | 1996-06-18 |
| 4823337 | Device for recording information on or reading information from an information disc | Evert Mulder | 1989-04-18 |