Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357280 | Use of tertiary phosphines in photographic silver dye bleach materials | Christoph Chylewski, Gerald Jan, Max Meier, Matthias Schellenberg | 1982-11-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357280 | Use of tertiary phosphines in photographic silver dye bleach materials | Christoph Chylewski, Gerald Jan, Max Meier, Matthias Schellenberg | 1982-11-02 |