Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881602 | Turf aerating tine | Loren F. Hansen | 1989-11-21 |
| 4867244 | Turf aerating apparatus | David G. Ferguson, Loren F. Hansen, Mark E. Lamb | 1989-09-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881602 | Turf aerating tine | Loren F. Hansen | 1989-11-21 |
| 4867244 | Turf aerating apparatus | David G. Ferguson, Loren F. Hansen, Mark E. Lamb | 1989-09-19 |