Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885160 | Wrapping lotion and method for permanent waving | Barry W. Williams | 1989-12-05 |
| 4883657 | Rearranger process and composition for permanent waving process | Barry W. Williams | 1989-11-28 |