Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834161 | Folding firedoor lead post assembly | J. A. Smart, E. Carl Goodman, Richard Karl Bowles | 1989-05-30 |
| 4799921 | Method for implanting retainers and implants in cattle | Norman E. Nicklas | 1989-01-24 |