Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158341 | Method of steering a mining machine | Foster Lewins, John S. Wykes | 1992-10-27 |
| 5116103 | Method of steering a mining machine | Foster Lewins, John S. Wykes | 1992-05-26 |
| 5106162 | Method of steering a mining machine | Foster Lewins, John S. Wykes | 1992-04-21 |