Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5108669 | Process and apparatus perforating tubular plastic foil with a laser beam | Berend Jan Van Dijk | 1992-04-28 |
| 4855574 | Welding sleeve with connecting means having an upper and lower part | Bernard Lodder, Jan Visscher | 1989-08-08 |