Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4196145 | Dyeing keratin fibers with 2-substituted m-toluenediamines | David Cohen | 1980-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4196145 | Dyeing keratin fibers with 2-substituted m-toluenediamines | David Cohen | 1980-04-01 |