Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4217255 | Composition railroad friction material with synthetic fiber content | — | 1980-08-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4217255 | Composition railroad friction material with synthetic fiber content | — | 1980-08-12 |