Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416764 | Method and appratus for extracting tar sand | Abner Y. Jones, Rudolf Elbrecht | 1983-11-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416764 | Method and appratus for extracting tar sand | Abner Y. Jones, Rudolf Elbrecht | 1983-11-22 |