Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315070 | Color-photographic recording material containing a highly reactive dir-coupler | Erwin Ranz, Joachim W. Lohmann | 1982-02-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315070 | Color-photographic recording material containing a highly reactive dir-coupler | Erwin Ranz, Joachim W. Lohmann | 1982-02-09 |