Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862180 | Discrete source location by adaptive antenna techniques | — | 1989-08-29 |
| 4838753 | Truck tractor fifth wheel-mounted lifting and towing unit | Roland P. Gehman | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862180 | Discrete source location by adaptive antenna techniques | — | 1989-08-29 |
| 4838753 | Truck tractor fifth wheel-mounted lifting and towing unit | Roland P. Gehman | 1989-06-13 |