Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814494 | Sealed spherical roller bearing for dragline swing shaft | Richard Borowski, Jeff S. Calvin, Maynard L. Oxley, Hiroshi Marunaka | 2004-11-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814494 | Sealed spherical roller bearing for dragline swing shaft | Richard Borowski, Jeff S. Calvin, Maynard L. Oxley, Hiroshi Marunaka | 2004-11-09 |