Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666315 | Ball ramp clutch with indexing plates | David M. Preston | 2003-12-23 |
| 6637569 | Ball ramp actuator with indexing plates | David M. Preston | 2003-10-28 |
| 6561332 | Ball ramp clutch with frictional damping | David M. Preston | 2003-05-13 |