Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820582 | Waterproof photographic paper support | Alois-Bernhard Kerkhoff, Wolfgang Storbeck | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820582 | Waterproof photographic paper support | Alois-Bernhard Kerkhoff, Wolfgang Storbeck | 1989-04-11 |