Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4324263 | Hair straightening process and hair curling process and compositions therefor | — | 1982-04-13 |
| 4314572 | Method and composition for hair treatment | Donald R. Cowsar | 1982-02-09 |