Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5564718 | Ground engaging skate brake | David N. Mitchell | 1996-10-15 |
| 5316325 | Mechanically activated skate brake and method | David N. Mitchell | 1994-05-31 |
| 5211409 | Mechanically activated skate brake and method | David N. Mitchell | 1993-05-18 |