Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333796 | Agricultural irrigation | Rufus J. Purtell | 1994-08-02 |
| 4795100 | Conservation irrigation | Rufus J. Purtell | 1989-01-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333796 | Agricultural irrigation | Rufus J. Purtell | 1994-08-02 |
| 4795100 | Conservation irrigation | Rufus J. Purtell | 1989-01-03 |