Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4269594 | Contact heat fusing apparatus | Frans M. Umans, Willy Gabriel Ceuppens, Robert Overmeer | 1981-05-26 |
| 4245586 | Developing device for xerographic copying machines | William Waterschoot | 1981-01-20 |