Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5201467 | Apparatus for interconnecting elastomeric grade crossing panels | John A. Perry | 1993-04-13 |
| 4846401 | Tie-down system for railroad grade crossing | — | 1989-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5201467 | Apparatus for interconnecting elastomeric grade crossing panels | John A. Perry | 1993-04-13 |
| 4846401 | Tie-down system for railroad grade crossing | — | 1989-07-11 |