Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4663236 | Coated photographic base material | Reiner Anthonsen, Ferencz Kertesz, Wieland Sack | 1987-05-05 |
| 4645736 | Waterproof photographic paper support | Reiner Anthonsen, Wieland Sack, Hans-Georg Wollmer | 1987-02-24 |