Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864215 | Current source arrangement | Hendrikus J. Schouwenaars, Dirk W. J. Groereveld | 1989-09-05 |
| 4859930 | Current source arrangement | Hendrikus J. Schouwenaars, Dirk W. J. Groeneveld | 1989-08-22 |