Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5722775 | Dynamic groove bearing with a lubricant barrier | Leonardus P. M. Tielemans, Jelm Franse, Ronny Verzijl, Robert C. H. Boereboom | 1998-03-03 |
| 4675998 | Dry-shaving apparatus | — | 1987-06-30 |