Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5272929 | Transmission shaft carrying at least two gears | Trevor Pitchford, David G. Cooper | 1993-12-28 |
| 5062313 | Manual control for extended range splitter type compound transmission | — | 1991-11-05 |
| 4876924 | Extended range splitter type compound transmission | David G. Wylie | 1989-10-31 |