Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440586 | Method of manufacturing a die for duplicating plastics information carriers | Gerardus J. M. Lippits, Arnoldus J. M. van den Broek, Rinse Dijkstra, Jelis De Jonge | 1984-04-03 |
| 4392397 | Method of producing a drawing die | Adrianus R. C. Engelfriet, Theodorus J. P. Van Vucht | 1983-07-12 |
| 4275091 | Method of duplicating plastics information carriers | Gerardus J. M. Lippits, Arnoldus J. M. van den Broek, Rinse Dijkstra, Jelis De Jonge | 1981-06-23 |