Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5222681 | Lighttight cassette | Otfried Urban | 1993-06-29 |
| 5046677 | Cassette for holding a roll | Ludger Bertels | 1991-09-10 |
| 5031854 | Winding roller to wind and unwind photopolymer material | — | 1991-07-16 |
| 5009372 | Roll cassette with spacers for height adjustment | — | 1991-04-23 |
| 4889292 | Lightproof cassette | Ludger Bertels | 1989-12-26 |