Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858832 | Agricultural water cannon | — | 1989-08-22 |
| 4840233 | Agricultural implement having rock shaft actuated transport wheel frames | Terrance A. Friggstad | 1989-06-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858832 | Agricultural water cannon | — | 1989-08-22 |
| 4840233 | Agricultural implement having rock shaft actuated transport wheel frames | Terrance A. Friggstad | 1989-06-20 |