Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605099 | Maintenance vehicle and method for measuring and maintaining the level of a railroad track | William E. Perry, Bruce W. Bradshaw, David Mathew Johnson | 1997-02-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5605099 | Maintenance vehicle and method for measuring and maintaining the level of a railroad track | William E. Perry, Bruce W. Bradshaw, David Mathew Johnson | 1997-02-25 |