Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5813475 | Hardfaced agricultural sweep and method for applying hardfacing | Timothy J. Bergan, Jimmy R. Kreftmeyer, Edward Rahe, Christopher J. Shutts, John T. Sponzilli | 1998-09-29 |
| 4630974 | Roof support system for a mine and method for providing the same | — | 1986-12-23 |