Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4310617 | Process for the production of masked positive color images by the silver dye bleach process | Herbert Mollet, Carlo Boragine | 1982-01-12 |
| 4197123 | Process for the production of masked positive color images by the silver dye bleach process | Christoph Chylewski, Max Marthaler | 1980-04-08 |