Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4509772 | One-piece adjusting sleeve | Frederick L. Drotar, David R. Wotton, Carroll D. Dickerson | 1985-04-09 |
| 4231588 | Adjusting sleeve assembly | David R. Wotton, Carroll D. Dickerson | 1980-11-04 |