Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5865915 | Bi-directional anti-slip drive wheel assembly | Robert H. Owen, Devlin J. Barnes, Steven R. Laney, Bruce E. Harrison | 1999-02-02 |
| 4714195 | Track spike with a single or double shaft | Peter Dahlhaus, Heinz Hofmann | 1987-12-22 |
| 4573811 | Center-free large rolling bearing | Dietrich Andree | 1986-03-04 |