Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4187714 | Surface friction tester | William James McGrath, James E. Cantrill | 1980-02-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4187714 | Surface friction tester | William James McGrath, James E. Cantrill | 1980-02-12 |