Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4580501 | Removing elastic rail fasteners | John L. Collins | 1986-04-08 |
| 4494463 | Rail fastener applicator | Hartley F. Young, John L. Collins | 1985-01-22 |
| 4463898 | Rail fasteners | Hartley F. Young | 1984-08-07 |
| 4379521 | Spring rail fastening system | Hartley F. Young, Hendrikus M. Verhoef, deceased | 1983-04-12 |