Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848013 | Two pin fastening assembly with interconnecting and retaining means | David E. Bowman, William J. Renski | 1989-07-18 |
| 4823486 | Positive keeper means for pins of earthworking tips | Jerry D. Fidler | 1989-04-25 |