Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4928600 | Railroad spike holding apparatus with acute angled jaws | William T. Urmson, Jr., Ronald K. Junk | 1990-05-29 |
| 4273052 | Spike driving apparatus | John Woolner, Richard B. Doorley | 1981-06-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4928600 | Railroad spike holding apparatus with acute angled jaws | William T. Urmson, Jr., Ronald K. Junk | 1990-05-29 |
| 4273052 | Spike driving apparatus | John Woolner, Richard B. Doorley | 1981-06-16 |