Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864938 | Railway freight car | Harold E. Hesch, Robert P. Sellberg | 1989-09-12 |
| 4805539 | Well car end structure having frameless radial truck | Ray L. Ferris | 1989-02-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864938 | Railway freight car | Harold E. Hesch, Robert P. Sellberg | 1989-09-12 |
| 4805539 | Well car end structure having frameless radial truck | Ray L. Ferris | 1989-02-21 |