Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6575477 | Quick change true length collet chuck assembly | Donald W. Ferris | 2003-06-10 |
| 5112261 | Reverse boat oars | — | 1992-05-12 |
| 4368396 | Reciprocating electric motor with permanent magnets | — | 1983-01-11 |