Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4382384 | Acoustic penetrometer for subsoil investigation | James K. Mitchell, Willem C. B. Villet, Clarence Chan | 1983-05-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4382384 | Acoustic penetrometer for subsoil investigation | James K. Mitchell, Willem C. B. Villet, Clarence Chan | 1983-05-10 |