Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779384 | Rail grinder | John J. Shoenhair, Darrell E. Johnson, Richard J. Gitter, Winfred C. Croft | 1988-10-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779384 | Rail grinder | John J. Shoenhair, Darrell E. Johnson, Richard J. Gitter, Winfred C. Croft | 1988-10-25 |