Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D322049 | Articulated three wheel vehicle | Trevor D. Doman, John R. Buttery | 1991-12-03 |
| 4944359 | Vehicle and method of releasably coupling parts of the vehicle together | Trevor D. Doman, John R. Buttery | 1990-07-31 |