Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5408813 | Dethatching apparatus with independently rotating sets of tines | Donald Richard Wittkowski, Alan Delfs | 1995-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5408813 | Dethatching apparatus with independently rotating sets of tines | Donald Richard Wittkowski, Alan Delfs | 1995-04-25 |