Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4218361 | Friction material | William H. Searfoss | 1980-08-19 |
| 4187209 | Brake block material | William H. Searfoss | 1980-02-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4218361 | Friction material | William H. Searfoss | 1980-08-19 |
| 4187209 | Brake block material | William H. Searfoss | 1980-02-05 |